We can also calculate volume in cubic millimetres or cubic metres. If we take the side lengths in the example above to be 4 cm, 3 cm and 5 cm, then we calculate its volume as follows: The volume of any rectangular prism is given by: The side lengths of a rectangular prism are generally called the length, the width and the height. The volume of each cube is one cubic centimetre so the volume of the rectangular prism above is 60 cubic centimetres, or 60 cm 3. If we cut this rectangular prism up into cubes, with each cube having a volume of one cubic centimetre, then there are 4 × 3 × 5 = 60 cubes. The volume of a rectangular prism is a measure of the space inside the prism. If all the faces of the prism are squares then the rectangular prism is a cube. Non-Right (Oblique) Rectangular Prism: The faces of such a prism are not at right angles to the bases. For a rectangular prism definition, one could say it is a prism whose bases are rectangles. There are two types of rectangular prisms: Right Rectangular Prism: The angle formed by the faces with any of its bases is 90 or a right angle.
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