A right triangle ABC with sides 5cm, 12cm and 13cm is revolved about the side 12cm. Find the volume of the solid so obtained.
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Solution
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Given, r=5cm, l=13cm, h=12cm
⇒Volume of solid =13πr2h=13π×5×5×12=100πcm3
=100×3.14
=314cm3
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