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Question

The inner radius of a pipe is 2.1 cm.How much water can 12 m of this pipe hold?

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Solution

Radius of a pipe = 2.1 cm

Length of the pipe = 12 m = 1200 cm

Then,
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Volume of the pipe = π × r² × h

= 227×2.1×2.1×1200 cm³

= 16632 cm³

= 166321000 litres

= 16.632 litres


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