April 13, 2023

Volume

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The volume of a cuboid.

April 13, 2023Explanation

We now have a block 7 cm long, 4 cm wide and 3 cm tall. Its volume is therefore 7cm × 4cm × 3cm, or 84 cm³.

Here is a centimetre cubeThis row of cubes is 7 cm long.If we add three more rows, we make a layer.Now we add two more layers.

It is 1 cm long, 1 cm deep and 1 cm tall.It therefore has a volume of 1cm × 1cm × 1cm, or 1 cm³.It therefore has a volume of 7cm × 1cm × 1cm or 7 cm³.It is 7 cm long, 4 cm wide and 1 cm tall.Its volume is therefore7cm × 4 cm × 1 cm or 28 cm³ It is still 1 cm wide and 1cm tall.

1 cm

1 cm1 cm

7 cm1 cm

4 cm3 cm

It is made up from 84 individual 1 cm cubes.The volume of a cuboid = length × width × height

orV = lwh

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April 13, 2023

Now we add two more layers.Explanation

We now have a block 7 cm long, 4 cm wide and 3 cm tall. Its volume is therefore 7cm × 4cm × 3cm, or 84 cm³.It is made up from 84 individual 1 cm cubes.The volume of a cuboid = length × width × height

orV = lwh

3 cm

7 cm

4 cm

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