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The curved surface area of a cylinder...

The curved surface area of a cylinder is `1320\ c m^2` and its base had diameter 21cm. Find the height and the volume of the cylinder.

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C.S.A of cylinder = `1320cm^2`
Diameter, `d=21cm`
Radius, `r=21/2cm`
C.S.A of cylinder = `2pirh`
`1320 = 2xx22/7xx21/2xxh`
`h=1320xx7xx2/44xx21`
`h= 20cm` (h=height)
Volume of cylinder = `pir^2h`
...
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