Unit 22 Section 2 : Volume of a Cube
In this section we introduce the volume of a cube and some other units of volume.
The volume of a cube
Volume of a cube = a × a × a = a³|
where a is the length of each side of the cube.
We want to find the volume of this cube in m³ and cm³.
To find the volume in m³, we calculate 2 m × 2 m × 2 m.
The volume of the cube is 8 m³ (8 cubic metres).
To find the volume in cm³, we need to remember that 2 m = 200 cm and calculate 200 cm × 200 cm × 200 cm.
The volume of the cube is 8 000 000 cm³ (eight million cubic centimetres).
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What is the volume of this cube in cm³?
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You have now completed Unit 22 Section 2
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Produced by A.J.Reynolds January 2001