Right rectangular prism (cuboid, box) V l w h V lwh V lw h. For example, if you are starting with mm and you know r and h in mm, your calculations will result with V in mm 3 and S in mm 2.īelow are the standard formulas for surface area. For a right triangular prism, the equation can be easily derived, as well as for a right rectangular prism, which is apparently the same shape as a box. The units are in place to give an indication of the order of the results such as ft, ft 2 or ft 3. Units: Note that units are shown for convenience but do not affect the calculations. Online calculator to calculate the surface area of geometric solids including a capsule, cone, frustum, cube, cylinder, hemisphere, pyramid, rectangular prism, sphere, spherical cap, and triangular prism Find the areas of each of the three rectangular faces, using the formula for the area of a rectangle: length x width. If you are looking for help while learning several geometry concepts then have a look at for your queries and doubts all in one place. Here are the steps to compute the surface area of a triangular prism: 1. Triangular Prism Calculator Calculator Use Triangular Prism top, bottom surface areas are 96 m², lateral surface area is 1392 m², total surface area is 1,584 m², volume is 2,784 m³. The formula for finding the surface area of a triangular prism is given as: A bh + L (s1 + s2 + s3) Where A is the surface area, b is the bottom edge of the base triangle, h is the height of the base triangle, L is the length of the prism, and s1, s2, and s3 are the three edges of the base triangle.
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