A pillar in the shape of a cylinder has radius 21 cm and height 3 m find the curved surface area and the volume of the pillar
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hlo
here is ur answer..
CSA of cyclinderical piller = 2πrh
2 × 22 / 7 × 21 × 3
2 × 22 × 3 × 3
396m²
volume = πr²h
22 / 7 × ( 21 ) ² × 3
22 / 7 × 441 × 3
22 × 63 × 3
4158m³
hope it helps....
here is ur answer..
CSA of cyclinderical piller = 2πrh
2 × 22 / 7 × 21 × 3
2 × 22 × 3 × 3
396m²
volume = πr²h
22 / 7 × ( 21 ) ² × 3
22 / 7 × 441 × 3
22 × 63 × 3
4158m³
hope it helps....
tulasisai49:
Ok
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