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The curved surface area of a cylindrical...

The curved surface area of a cylindrical pillar is `264\ m^2` and its volume is `924\ m^3` . Find the diameter and the height of the pillar.

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given `2pirh=264m^2`
volume `pir^2h=924m^3`
on dividing 1st equation by 2nd we get r`=7m`
replace it in above `2pixx7xxh=264`
h`=6m`
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