Volume of a Cube Practice

Question 1

Given a cube with the length of each side (edge) as 3cm. Find the volume of this cube.

Answer

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Step by Step Solution

Step 1

The picture below shows the cube with the sides (edges) with the length of 3cm.

Step 2

To find the volume, we can just use the formula for the volume of the cube as shown:

V = L³
   = 3³
         = 3×3×3
   = 27

Step 3

Now, the calculated number 27, carries no meaning unless the unit for it is included. Since the sides of the cube are in unit cm, the unit for volume will be cm³. Hence:

V = 27cm³

Step 4

Clearly, the answer is D.

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