Question

If base radius of a right circular is halved , keeping the height safe, find the ratio of the volume of the reduced cylinder to that of the original cylinder.

Answer 1

Answer:

Step-by-step explanation:

Area of a cylinder 2πrh…..Original (formula)

Where ‘r' is the radius ‘h' is the height.

If the radius of the cylinder is halved r*1/2 & height is same ‘h', the new or reduced area of the cylinder is as follows

2π(r/2)*h = πrh

The ratio of the area of the reduced cylinder & the original one =

πrh : 2πrh

1 :2