Formula of Volume of Cube

Aug 09, 2022, 16:45 IST

The Cube

A special case for a box is a cube. This is when all the sides are the same length. You can find the volume of a cube by just knowing the measurement of one side.

If a cube has side length "a" then

Volume = a x a x a

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Volume = a³

This is where we get the term "cubed". When we have something to the power of 3, we call it cubed.

Units of Measure

When you find the volume of an object, the units are cubed. This means that if the measurements of the sides were in inches, then the answer is in inches cubed or inches³.

Example:

Find the volume of a box with the following dimensions:

Length = 7 cm

Width = 2 cm

Height = 3 cm

The answer would be:

7 x 2 x 3 = 42 cm³

Things to Remember

• Volume = length x width x height
• You only need to know one side to figure out the volume of a cube.
• The units of measure for volume are cubic units.
• Volume is in three-dimensions.
• You can multiply the sides in any order.
• Which side you call length, width, or height doesn't matter.

Formula of Volume of Cube pdf