To find the surface area of a rectangular prism, find its length, width and height. Multiply width times height, length times width, and length times height. Add the three products together, and multiply the sum by two. ... More »

The surface area of a rectangular prism is the combined surface areas of all six of its sides. Because opposing sides are always the same size, the total surface can be determined by using the length, width and height of... More »

Examples of rectangular prisms include a solid brick, a regular box, a rectangular cabinet, a six-sided die or a Rubik's cube. A rectangular prism, also called a rectangular cuboid, is a three-dimensional solid object th... More »

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A rectangular prism's formula is given as length (l) multiplied by the width (w) and height (h), or with the formula V = l * w * h. A rectangular prism is a three-dimensional figure that has six rectangular faces, and al... More »

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The formula is the length of the prism times the area of the trapezoid, which is one-half times (a+b) times the height; the area is also called the cross-sectional area. "A" and "B" are the two bases of the trapezoid. Th... More »

The surface area of a rectangular prism is the combined surface areas of all six of its sides. Because opposing sides are always the same size, the total surface can be determined by using the length, width and height of... More »

The surface area of a rectangular pyramid is found by adding the area of the base to the combined area of the four triangular sides. The area of the base is found by multiplying length times width. The area of each trian... More »

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