Question

The area of the base of a cylinder is 616cm^2,then the radius of the base of cylinder is____cm

Answer 1

A= 22/7 × radius ^2
616cm^2= 22/7 ×r ^2
616 cm^2 ×7/22=r^2
196cm^2 = radius^2
sq. root of 196 cm^2 = radius
14cm = radius
Hope it helps.

Answer 2

$pir^2$
=616 then u can easily solve value of radius r