A prism is a three-dimensional figure whose ends, or bases, are parallel polygons. Its sides, or faces, are parallelograms. A parallelogram is a four-sided flat figure whose opposite sides are parallel and equal.
A polygon has three or more sides, so the bases of a prism have three or more sides. The bases can be triangles, squares, rectangles, etc. A rectangular prism has rectangular bases. The four faces of the rectangular prism are at right angles to the bases. Carpenters sometimes have to figure the volume of a space that is a rectangular prism. For example, excavations or concrete forms may be in this shape.
To find the volume of a rectangular prism, multiply length × width × height. The formula is V=lwh. Volume is measured in cubic inches, cubic feet, or cubic yards.
Given length = 10 feet, width = 5 feet, and height = 4 feet, find the volume of the rectangular prism.
The volume of the rectangular prism is 200 cubic feet
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