External radius of a plastic pipe is 240mm and the internal radius is 200mm. If the length of the pipe is 100mm , find the volume of the material used to make the pipe?
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External radius of a plastic pipe (R) = 240mm or 24cm
and the internal radius (r) = 200mm = 20 cm
If the length of the pipe (h) = 100mm = 10 cm
the volume of the material used to make the pipe = πh( R^-r^)
= 22/7 ( 24^-20^)
= 22/7 ( 576-400)
= 22/7 ×176
=553.14 cm^
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