To find the surface area, you need to know all three dimensions. Where: l is the length, w is the width, and h is the height. You can calculate the surface area of a rectangular prism by using the formula: Surface Area Of A Rectangular Prism FormulaĪ rectangular prism is a three-dimensional object with six faces that are rectangles. It can also be used in 3D printing to determine how much material is required to create an object. The surface area of a rectangular prism is important to know when trying to find the amount of material needed to cover the outside of the figure. The total surface area of a rectangular prism is the sum of the areas of all six faces. To find the area of each face, multiply the length and width of the rectangle. The surface area of a rectangular prism can be found by adding the areas of all six faces. What Is The Surface Area Of A Rectangular Prism?Ī rectangular prism is a solid geometric figure with six faces that are rectangles. The length, width, and height of a rectangular prism are denoted by l, w, and h. The opposite sides of a rectangular prism are parallel, and the angles between them are all 90 degrees.Ī rectangular prism has two sets of parallel faces, so it is also called a parallelepiped. What Is A Rectangular Prism?Ī rectangular prism is a solid three-dimensional figure with six faces that are all rectangles. Once we have the areas of all six faces, we can add them together to get the total surface area of the rectangular prism. The length and width of each face are different, so we need to make sure we’re finding the right measurements for each one. To find the area of each face, we need to multiply the length and width of that face.
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