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Q.

The height of a cone is 15 cm. If its volume is 1570 cm3 , find the radius of the base. (Use π = 3.14)

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answer is 10.

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Detailed Solution

Given, Height, h = 15 cm and Volume =1570 cm3

Using the formula of Volume of the cone, V = (1/3) πr2h

We have, 

(1/3)×3.14 × r2 ×15 = 1570

r2 = 100

r = 10

The radius of the base of the cone is 10 cm.

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