If radius of a cylinder is halved and height is increased by 4 times then find how many times curved surface area is increased and how many times volume is increased
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Cylinder:1
Radius=r, Height=h
Curved Surface Area=2πrh sq.unit.
Cylinder :2
Radius=r/2
Height=4h
Curved Surface Area=2πrh
=2×π×r/2×4h
=2πr×2h
Curved Surface Area is increased by=2πrh/2πr×2h
=2times
Radius=r, Height=h
Curved Surface Area=2πrh sq.unit.
Cylinder :2
Radius=r/2
Height=4h
Curved Surface Area=2πrh
=2×π×r/2×4h
=2πr×2h
Curved Surface Area is increased by=2πrh/2πr×2h
=2times
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