The height of a cone is 15 cm. If its vo...

The height of a cone is 15 cm. If its volume is `1570\ c m^3`, find the radius of the base.

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volume of a cone `V= 1/3pir^2h`
`1570=1/3xx3.14xxr^2xx15`
`r^2=1570/15.7=10cm`
Therefore, radius of the base is `10cm`.

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