Question

12. The heights of two right
circular cylinders are
same. Their volumes are
respectively 16π m3 and
81π m3. The ratio of
their base radii is
(a) 16: 81
(b) 4:9
(C) 2:3
(d) 9:4​

Answer 1

Step-by-step explanation:

vol of cylinder = πr^2h

16π:81π ------>r^2

=4:9-------->r

ans is 4:9

Answer 2

Answer:

4:9

Let suppose height of both cylinder is 1 meter

Volume of cylinder A = πr^2 * h = 4^2 *1*π = 16

Volume of cylinder B =πr^2 * h = 9^2 *1*π = 81