Question

when the height is doubled the lateral surface area of cylinder increases by ____ times​

Answer 1

lateral surface area become twice 63 as the base are common their radius shall be equal and the height of the hemisphere equal to its radius

Answer 2

Answer:

2

L.S.A of a cylinder =2*pie*r*h

if h is doubled

L.S.A of a cylinder = 2*pie*r*h

=4*pie *r*h

=2(2*pie r*h)