Rectangular tube surface area calculator. Curved Circular (Cylinder .

Rectangular tube surface area calculator. What is a rectangle? How to find the area of a rectangle? Rectangle formulas Rectangle calc: find A (area) Rectangle calc: find P (perimeter) Rectangle calc: find D (diagonal) Golden rectangle Properties of a rectangle Rectangle vs. Easily calculate surface area with our online tool for cubes, rectangular prisms, boxes, cylinders, and more. Whether you're working with cubes, spheres, cylinders, or cones, this calculator makes the process quick and easy. The lateral surface is a rectangle with length l and width equals to 2πr if we cut and unfold the tube. Rectangular Hollow Sectional – Cross-Section Area Calculator Cross-sectional area is the area of a cut made through an object, typically perpendicular to a specific axis, used to analyze the object’s properties, such as flow or structural integrity. Ideal for students, architects, and DIY planners, this tool supports accurate measurements for projects in construction, interior layout, land planning, and academic geometry exercises. Similarly, the plastic modulus of a rounded rectangle with respect to a centroidal axis y-y, perpendicular to its base, can be found, by alternating dimensions b and h, to the last formulas. Calculate the volume, capacity, and the surface area of a rectangle shaped tank. 28319 m. Diagrams of solid geometry shapes leading to specific solid geometry calculators. Imagine a simple smooth pipe. Calculate the surface area of a fin tube for a measurement of the square footage of your next project at Durafin Tube. Determine hollow cylinder volume for engineering, plumbing, or scientific projects. The spreadsheet includes all the up to date published design information for any standard sized sections included in US (AISC), European, UK or Indian steel design standards. Pyramid Calculate the surface area of a rectangular based pyramid. Calculate hollow cylinder measurements including volume, surface area, and length. Online calculators and formulas for a surface area and other geometry problems. If you want to learn how to find the volume and surface area of an object, you can use the volume calculator or the surface area calculator to learn how to find the volume and surface area of geometry shapes like cylinder, cube, cone, rectangular prism, or triangular prism, etc. Welcome to How to Find the Surface Area of a Rectangular Prism with Mr. Click “Calculate” to get the surface area result displayed in the result field. Free calculator tool. Use the to compute how much material (e. To calculate t, use the following formula This rectangular prism calculator will help you to work out the volume, surface area, and diagonal of that solid. Ideal for geometry, engineering, and practical applications. Surface Calculator is an online tool designed to accurately calculate the surface area of various shapes. A square tube has a hollow square cross-section, which means it has both an outer and an inner square. Curved Circular (Cylinder Calculate tube volume accurately with input for outer diameter, inner diameter, and length. Explanation The calculator computes surface area based on standard geometric formulas: Cube: 6 × side 2 Rectangular Prism: 2 × (length × width + width × height + height × length Use our Surface Area Formula Calculator to find the surface area of 3D shapes like cubes, spheres, cones, and cylinders with ease. Rectangular Box Calculate the surface area or the side length of a rectangular prism or box. This surface area calculator calculates the surface area of a sphere, cube, cylinder, pyramid, cone, and rectangular and triangular prism. Our step-by-step guide and examples will help you easily and accurately find the area of a tube. Determine the total heat transfer surface area for a fire-tube boiler with 100 tubes, each 3 meters long and 0. To calculate C 2, use the following formula: 2πr 2. The following design data in accordance with the Eurocode 3 UK National Annex: Aug 1, 2025 · Calculator online for a the surface area of a capsule, cone, conical frustum, cube, cylinder, hemisphere, square pyramid, rectangular prism, triangular prism, sphere, or spherical cap. This calculator computes the surface area of a number of common shapes, including sphere, cone, cube, cylinder, capsule, cap, conical frustum, and more. Quick, accurate results for geometry and construction needs. Remember that the moment of inertia of a rectangular area, , around an axis aligned to its side is: . CROSS SECTIONAL AREA CALCULATOR Cross sectional area calculator for hollow cylinder, I beam, isosceles triangle, rectangular bar, angle, round bar, hollow rectangle, equilateral triangle, C channel and T section. When you substitute r 2 for its value, you get 2π (1), which equals 6. The probably most commonly used formula including the cross-sectional area is Navier’s formula, which calculates the stress in any point of a cross-section due to bending and axial forces. Equivalent diameter is the diameter equivalent to the given value, The perimeter of a figure is the total distance around the edge of the figure Jan 7, 2025 · To calculate the surface area of a square tube, you need to understand its structure. Apr 8, 2025 · The Duct Bend Area Calculator finds the surface area of a bend in a duct, whether it’s rectangular or circular. Spandrel or Fillet / Tube Surface Area Equation Area Equation and Calculation Menu The following is the Spandrel or Fillet Surface Area. It simplifies the process of finding the side surface area of three-dimensional objects, excluding their top and bottom bases. Surface Area of Pipe (SA): The calculator returns the surface area in square feet. Home About us Product catalog Calculators Services Storage bases Gallery Documents Careers Contacts Mobile version | Web design DualM studio This online Duct Area Calculator computes the surface area of various duct shapes—whether round or rectangular—as well as fittings including elbows, tees, and end caps. Whether you’re working with cylinders, cones, prisms, or pyramids, this calculator enables you to quickly compute lateral areas with precision and ease. By convention, the volume of a container is typically its capacity, and how much fluid it is able to hold, rather than the amount of space that the actual container displaces. using the surface area calculators involved in this section. The Cross Sections Database allows for the creation and editing of cross section properties to be used in the calculators on this site. Geometric formulas and shape diagrams. What is a Surface Area Calculator? Definition: This calculator computes the surface area for various three-dimensional shapes, including spheres, cylinders, cubes, cones, rectangular prisms, triangular prisms, pyramids (with triangular, rectangular, pentagonal, or hexagonal bases), hemispheres, capsules, and spherical caps. Circle: Based on radius. Fin surface area calculator uses Surface Area = (pi/2)*Number of Fins*((Fin Diameter^2)-(Outer Diameter^2)) to calculate the Surface Area, The Fin surface area formula is defined as the area on the surface required for the fin for effective heat transfer. This surface area calculator is very easy to use and completely free. Volume formulas and explanations can be found below the tool. Calculate volume of geometric solids. Surface area gives the total area of all six faces (measured in square units). What is a Rectangle Area Calculator? A rectangle area calculator is an online tool that helps users compute the area of a rectangle based on its length and width. When you substitute r 1 for its value, you get 2π (2), which equals 12. Triangle: Based on base and height. 1 pounds one US gallon of gas = 6 pounds How do you calculate the surface area of a fin tube? The amount of surface area determines the heat exchange potential of fin tubing. Nov 24, 2024 · Surface Area Calculator Compute the surface area of various geometric shapes (Sphere, Cylinder, Cone, Cuboid, Rectangular Prism, Triangular Prism, Square Pyramid, Tetrahedron) and get detailed step-by-step solutions! Find Surface Area of different objects like of Cone, Cube, Cylinder, Pipe, Prism, Pyramid, Rectangular Box, Sphere, Torus (Ring), Tube and more Aug 1, 2025 · Calculator online on how to calculate volume of capsule, cone, conical frustum, cube, cylinder, hemisphere, pyramid, rectangular prism, triangular prism and sphere. Need to calculate the volume of a box? Try this tool. Finding the total surface area without performing manual calculations is possible. Purpose: It helps engineers, fabricators, and construction professionals determine material weight for structural calculations and transportation planning. Aug 1, 2025 · This calculator will calculate the various properties of a tube, also called a pipe or hollow cylinder, given 3 known values from variables of radii, circumference, wall thickness and height. Use our free Tube Calculator to instantly compute radius, circumference, surface area, volume, and other properties of pipes and hollow cylinders. Calculate the unknown defining surface areas, height, circumferences, volumes and radii of a capsule with any 2 known variables. Use this simple geometry area of tube calculator to calculate area of tube. Keep units consistent when making calculations. Volumes of many shapes can be Feb 11, 2025 · According to the formulas provided by tuspipe, you can calculate the cross-sectional area of a rectangular hollow sections steel tube of any size. This surface area calculator computes the surface area of common shapes, including sphere, cone, cylinder, torus, capsule, cube, rectangular prism, and conical frustum. Jun 6, 2023 · The cross-sectional area is used in many structural calculation methods. Calculate surface area instantly with our responsive tool. Pipe Calculate the surface area, radius, or length of a pipe. Feb 25, 2024 · This calculator allows you to input the pipe’s diameter and length to calculate the surface area in square feet or square meters, helping to accurately determine the amount of material needed for tasks like painting or insulation. The area of a rectangle is calculated by multiplying its length by its width: Area = Length × Width This simple formula, when applied correctly, provides the total surface area covered by the rectangle, typically expressed in square Volume and Area of Rectangular Solid - Calculator Online calculator to calculate the volume and the surface area of a rectangular given its length, width and height. This added area dramatically improves the heat exchanger’s efficiency. 05 meters in diameter. Find Surface Area of Tube or Find Surface Area of different objects like of Cone, Cube, Cylinder, Pipe, Prism, Pyramid, Rectangular Box, Sphere, Torus (Ring), Tube and more Use this surface area calculator to easily calculate the surface area of common 3-dimensional bodies like a cube, rectangular box, cylinder, sphere, cone, and triangular prism. Aug 1, 2025 · Calculators online for geometric solids including calculations for capsule, cone, conical frustum, cube, cylinder, hemisphere, pyramid, rectangular prism, sphere, surface area and volume. You can calculate the surface area of objects like spheroid, icosahedron, tube etc. Calculation of rectangle area is extremely useful in everyday situations: from building construction (estimating the tiles, decking, siding needed or finding the roof area) to decorating your flat (how much paint or wallpaper do I need?) to calculating how many people your cake can feed. The Lateral Surface Area Calculator is an essential tool in geometry, architecture, engineering, and construction. Is a square a rectangle? Weird fun fact: what's the most rectangular shaped country in the world? Nov 11, 2023 · The Duct Area Calculator help professionals in the HVAC industry determine the cross-sectional area of rectangular and circular ducts. May 12, 2021 · The moment of inertia of the channel section, around non-centroidal y0 axis, is easy to find, if we consider the entire cross-section as an assembly of two flanges (areas B and C in figure) and one web (area A). Free tool to calculate section properties such as area, centroid, moment of inertia, section modulus, and radius of gyration. g. Volume Calculator Use this volume calculator to easily calculate the volume of common bodies like a cube, rectangular box, cylinder, sphere, cone, and triangular prism. May 16, 2025 · Use the Rectangle Area Calculator to quickly determine the surface area of any rectangular shape. Area Moment of Inertia Section Properties of Rectangle Tube Calculator Calculator and Equations. The online duct area calculator helps to calculate the cross-section and area of rectangular or round ducts, taking into account the air exchange (in m³/h) and airflow rate (in m/s). Rectangle Structural Tube Per. ASTM 1085, table chart HSS Hollow Structural Section Square Structural Tube. To use this calculator, you need to input the dimensions of the object, such as length, width, and height for a rectangular prism, or radius and height for a cylinder. Add fins, and you multiply that contact area—often by several times. In Surface Area Calculator - Compute the surface area of various geometric shapes (Sphere, Cylinder, Cone, Cuboid, Rectangular Prism, Triangular Prism, Square Pyramid, Tetrahedron) and get detailed step-by-step solutions! May 14, 2025 · The Surface Area Calculator is a tool that helps you determine the surface area of various 3D geometric shapes. Feb 11, 2025 · Quickly find the wetted surface area of tanks, vessels, and cylinders using our Wetted Surface Area Calculator. The area of the tube formula is the sum of the circular base area and the area of the cylinder. Calculate the surface area, inner or outer radius, or height of a tube. Here is a list of the available calculation tools for the mechanical and geometric properties of several cross-sections. More Calculators: Bending Stress Calculator Vinyl Siding Price Vinyl Fence Price Working Load Limit AWG to Apr 6, 2024 · Just select the most appropriate icon below to get detailed information relating to the shapes Area, Perimeter, Centroid, Second Moment of Area, Polar Moment of Inertia, Radius of Gyration and the Elastic and Plastic Section Modulus's. Sep 19, 2021 · This calculator calculates the surface area of tube using outer radius, inner radius, height values. Read on to understand how to calculate cross-sectional area of I section, T section, C beam, L beam, round bar, tube, and beams with rectangular and triangular cross-sections. 56637 m. Aug 1, 2025 · Shape diagrams and formulas for geometric solids including capsule, cone, conical frustum, cube, cylinder, hemisphere, pyramid, rectangular prism, sphere. Free online pipe calculator can estimate volume, capacity, area and size of the pipe. Sphere Calculate the surface area or the radius of a Tube could seen as hollow cylinder or pipe. Calculator for Hollow structural sections - rectangularCalculator for Hollow structural sections - rectangular ( Contact Us For More Info ) Jul 15, 2025 · 📌 Why Is Fin Tube Surface Area So Important? The purpose of adding fins to a tube is straightforward: increase the surface area available for heat transfer. Rectangular hollow section properties calculator for cross section area, weight, second moment of area, section modulus and radius of gyration calculation of a hollow rectangular section. The Calculate the surface area, radius, or length of a pipe. one US gallon of diesel fuel = 7. This engineering data is often used in the design of structural beams or structural flexural members. They are commonly used in various engineering disciplines, such as structural or mechanical engineering, for purposes like strength of beams finding, design etc. Additionally, some calculators may ask for specific parameters depending on the shape, like Z = Elastic Section Modulus, in 3 or mm 3 Online Hollow Rectangle Property Calculator Using the structural engineering calculator located at the top of the page (simply click on the the "show/hide calculator" button) the following properties can be calculated: Area of a Hollow Rectangle Perimeter of a Hollow Rectangle Centroid of a Hollow Rectangle If you want to calculate the inner volume of a hollow cylinder and not its shell, visit our pipe volume calculator: don't worry, the math is similar! And for other cylinder calculators, visit the radius of a cylinder calculator, the height of a cylinder calculator, or the surface area of a cylinder calculator. Get instant results with inner and outer radius inputs. You simply select the shape you want, input the relevant dimensions, and click Calculate to get the area. The following formula is then Home / Calculators / Geometric /Cross-Sectional Area Cross-Sectional Area Calculator Cross Section: Large Width (B): Large Height (H): May 30, 2020 · For the above calculation, the cut-out corner area was considered as the difference of a square with side r and a quarter circle with the same radius. Whether you're a professional engineer or a student, this tool is perfect for anyone looking to calculate the surface area of a cylinder. Calculate the surface area of tube based on the height, outer and inner radius of tube. Enter the shape dimensions b, h and t below. σ = N A + M I y z While it’s very important to know how to derive and calculate the Cross-sectional areas, some of them might be A = H × W – (H – 2t) × (W – 2t) Where: A is the cross-sectional area H is the height of the object W is the width of the object t is the thickness of the object’s walls This formula is particularly useful for calculating the cross-sectional area of hollow rectangular objects. Volume tells you how much space the object occupies (measured in cubic units). Calculating the surface area of a rectangular prism might seem like a mathematical chore, but with the right approach, it becomes a straightforward and manageable task. The SI unit for volume is the cubic meter, or m3. Call us. The most comprehensive tool for circular, square, and rectangular tubes with all standard and custom dimensions. Find the external surface area of a rectangular boiler shell measuring 4m by 2m by 3m. Jun 11, 2025 · Calculate the surface area of a cylindrical boiler with a diameter of 2 meters and length of 5 meters. Square & Rectangular Hollow Sections Technical Specification Mechanical Properties Physical Specifications Jul 1, 2020 · Calculate the properties (mechanical or geometric) of a circular hollow cross-section. Curved Square / Rectangular Tube Section Stress Formulas and Calculator With Moment Loading Applied Curved Trapezoid Section Stress Formulas and Calculator With Moment Loading Applied Curved Rectangular Beam Stress Formulas and Calculator Bending stresses in curved beams do not follow the same linear variation as straightbeams, because of the variation in arc length. Volume formulas. How to find the surface area of a cylinder? What's the surface area of a cylinder formula? Check out this surface area of a cylinder calculator and find answers to these questions. Calculate steel tube weights instantly with our free 2025 calculator. Free online calculators for area, volume and surface area. Rectangular steel tubing sizes, dimensions and section properties including moment of inertia, elastic section modulus, radius of gyration, torsional moment of inertia and plastic section modulus. Rectangular Hollow Tube Sections Hot-Finished per BS EN 10365 Euro Code 3 Section Properties Calculator. Approximate weight of Fuel or Water one US gallon of water = 8. Please use consistent units for any input. Weight, cross sectional area, moments of inertia - Imperial units Cylinder Calculate the surface area, radius, or height of a cylinder. The calculated properties are not specific to any material, but depend on the shape of the section only. Input dimensions for accurate results in square meters or feet—ideal for industrial applications. Find Surface Area of different objects like of Cone, Cube, Cylinder, Pipe, Prism, Pyramid, Rectangular Box, Sphere, Torus (Ring), Tube and more The Fin surface area given equivalent diameter formula is defined as the surface area of the fin required for the effective heat transfer and is represented as As = ( (pi*De*P)/2)-AB or Surface Area = ( (pi*Equivalent Diameter*Perimeter)/2)-Bare Area. For example, when r 1 = 2, r 2 = 1, h = 1 To calculate C 1, use the following formula: 2πr 1. Online calculators and formulas for a cylinder and other geometry problems. Transition Calculator is very helpful in sheet metal fabrication, process equipment Rectangle Tube Properties Calculator Area Moment of Inertia Section Properties: Rectangle Tube Calculator Nov 21, 2023 · Discover the equations for the surface area and volume of a tube with our bite-sized video lesson. 34 pounds. We would like to show you a description here but the site won’t allow us. Ball Surface Area Tube is a shape similar to cylinder with circular base. J! Need help with finding the surface area of a rectangular prism? You're in the righ Calculator computes the surface area of a rectangular solid for a given length, width, and height. Whether you are a student, engineer, architect, or simply someone working with measurements, this calculator makes it easy to compute surface area accurately. Tube surface area is the same as the lateral area. It offers limited contact with air or another fluid. Use the helical coil calculator to estimate the inductance and volume of coil springs. Quickly calculate surface areas of various 3D shapes with our comprehensive Surface Area Calculator. Mar 2, 2025 · Area of Cross-Section Calculator This Cross-Sectional Area Calculator helps users calculate the sectional area of hollow sections, such as a hollow cylinder, hollow rectangle or square, as well as structural shapes like I-beams, T-beams, C-sections, angle sections, and other basic shapes such as hemispheres, annuli, Trapezoid etc. Learn how to use the Area of a Tube Calculator to calculate the surface area of a tube or cylindrical object. May 22, 2025 · The Surface Area Calculator is a handy tool that helps users find the surface area of different 3D shapes. Ideal for engineers, students, and professionals working with tubular structures. This calculator uses inches for measurements. Rectangular Tube Sections Cold-Formed per BS EN 10219-2 Section Properties Calculator. To use this calculator, you input the object’s dimensions—such as length, width, and height for a rectangular prism, or radius and height for a cylinder. This specification covers cold-formed welded carbon steel hollow structural sections (HSS) for welded or bolted construction. Calculate paint consumption by surface area for various shapes like round pipes, rectangles, I-beams, and channels. Learn how to calculate them, then test your skill with a quiz. It also depends on the shape of the given object. Jul 1, 2020 · This tool calculates the properties of a rectangular tube (also called rectangular hollow cross-section or RHS). Calculate the unknown defining side lengths, circumferences, volumes or radii of a various geometric shapes with any 2 known variables. Rectangular Steel Tubing Stress Strength Calculator to calculate normal stress, shear stress and Von Mises stress at critical points of a given cross section of rectangular hollow structural section. Cylinder Calculator The volume of a cylinder, as well as the dimensions related to it, can be calculated by inputting the known values into the calculator. Calculate the area of a tube based on the radius and height of the tube. In this article, we shall go over the surface area of a rectangle, its equation, how to find the surface area of a rectangle, and some frequently asked questions. com Surface area of solids is measured by calculating total area they occupy. However, this can be automatically converted to compatible units such as square inches via the pull-down menu. The area of the surfaces of an object or solid is termed as the surface area. Where: A = Area Free online surface area calculator for balls, cones, cubes, cylindrical tanks, rectangular tanks, capsules, caps, conical frustums, ellipsoids, and square pyramids. This section involves calculators related to three dimensional geometric solids and shapes. , of the 3d figures. What Is the Dimension Calculator? The Dimension Calculator is a free online tool that calculates the volume and surface area of a rectangular prism (also known as a cuboid or box) using its length, width, and height. For our tech-savvy friends, here’s the formula in a code block: Surface Area = Length x Width Categories of Surface Area Calculations We’ve categorized surface area calculations into four main categories: Surface Area Discover how to calculate the surface area of cubes and rectangular prisms with Cubert and Bling, the charismatic shapes from NUMBEROCK's "Surface Area Song!" Set in the whimsical land of Shapeville, this engaging video teaches essential geometry concepts through catchy lyrics and clear step-by-step examples. Related Surface Area Calculator | Area Calculator Volume is the quantification of the three-dimensional space a substance occupies. Easily calculate the surface area of 2D and 3D shapes using our Surface Calculator. A Surface Area Calculator is a tool designed to compute the total area of the external surfaces of a three-dimensional object. This engineering calculator will determine the section modulus for the given cross-section. Calculate Result: How to Use the Calculator Select the geometric shape from the dropdown menu and enter the required dimensions. The following design data to Eurocode 3 (in accordance with the UK National Annex). The calculated results will have the same units as your input. Our tube area calculator is designed to help you calculate the area of a tube quickly and easily. , paint, polyethylene, polyurethane, zinc, bitumen, FBE or mortar) is needed to . How to calculate the surface area of a tube A tube is a cylinder shape but with both ends open. What is Volume Calculator A Volume Calculator is a tool used to determine the amount of space occupied by a three-dimensional object. Find Surface Area of different objects like of Cone, Cube, Cylinder, Pipe, Prism, Pyramid, Rectangular Box, Sphere, Torus (Ring), Tube and more The surface area of a rectangle is one of geometry’s most practical concepts—and it’s far more useful than it looks. The CivilWeb RHS Section Properties Calculator is a simple but powerful tool which the designer can use to determine the design information required for the design and analysis of any rectangular hollow section. other shapes. You can directly enter values in the input box and use the calculate button to get answers quickly and accurately. This surface area calculator takes in the necessary values and calculates the surface area for objects having different shapes. Just provide the width and height to get instant results. The excellent stability and compressive strength of rectangular hollow section steel pipes meet the requirements of heavy-duty structural engineering. This surface area of a rectangle calculator is the perfect tool for you to calculate the surface area of a rectangle from its length and width. Add the surface area of the base, which may be rectangular, or triangular. A tube's surface area thus can be calculated as: Calculation Formula The surface area of a rectangle is calculated by multiplying its length and width. It is the sum of all the areas of the surfaces of a solid. Home About us Product catalog Calculators Services Storage bases Gallery Documents Careers Contacts Mobile version | Web design DualM studio Calculate the area of all the triangular sides of the pyramid using the triangle tool above. It's easy to use and perfect for students, engineers, architects, and anyone who needs to solve complex surface area problems. These calculators will help you to find the area, perimeter, volume etc. The calculator includes the following algorithms: Top Or Bottom Surface Area of a Cylinder: T = B = π*r2 Lateral Surface Area of a Cylinder: L = 2*π*r*h Definition: This calculator estimates the weight of rectangular tubing based on its dimensions and material density. Simplify geometry with our surface area of a rectangular prism calculator, applying the surface area of a rectangular prism formula for accurate results. This site calculates stresses, supports in a simply supported beam. Sep 30, 2021 · Online area of tube calculation. Easily calculate the volume and surface area of a tube using our Tube Calculator, ideal for geometry and engineering applications. Calculate surface area and volume for cubes, spheres, cylinders, cones, and rectangular prisms using shape-specific dimensions. Eurocode 3 Table of design properties for rectangular steel profiles - Rectangular Hollow Sections (RHS) Description: Design aid - Table of design properties for rectangular hollow steel sections (RHS) including section dimensions, cross-section properties (area A, second moment of area I, elastic modulus Wel, plastic modulus Wpl), strength properties (elastic moment Mel, plastic moment Mpl Pipe and Tube Equations - moment of inertia, section modulus, traverse metal area, external pipe surface and traverse internal area - imperial units Calculate the volume of numerous regular shapes with ease using our versatile volume calculator. Surface Area Calculator - Calculatorall. Also calculation of moments of inertia, moment of resistance of simple shapes. Transition Calculator Transition Calculator is used to generate Flat Pattern Layout Markings or Fabrication Layout Markings of Rectangular to Round Transition or Square to Round Transition, Round to Rectangular Transition or Round to Square Transition, Pyramid Transiton, Truncated Pyramid Transitions. Aug 1, 2025 · Calculator online for a circular cylinder. What Is the Surface Area Calculator The Surface Area Calculator is an online tool that computes the surface area of three different shapes based on user input: Rectangle: Based on length and width. This area calculator determines the area of a number of common shapes, including rectangle, triangle, trapezoid, circle, sector, ellipse, and parallelogram. steodn kjymxo jhefv ctqi ufreab qjo vvd mxhbn qvgm dtcols