Question 92 (i)
Radius of a cylinder is r and the height is h. Find the change in the volume if the height is doubled.
∵ Volume of a cylinder =πr2h
where, h is height and r is radius of base of the cylinder.
i) If height is double i.e. h=2×h=2h
Then, its volume =πr2×2h
Therefore, Volume became twice the original volume of the cylinder.