How can you solve this For two cylinders A and B the ratio of the lengths is 3 ratio1 and the ratio of diameters is 1 ratio 2 Calculate the ratio of their volumes?

V =piR^2 H , Since R=D/2

V= pi (D^2/4)H

V1= pi(D1^2/4) H1 ( Vol first cylinder , Diameter D1 , height H1)

V2= pi(D2^2/4) H2

Divide both

V1/V2 =( D1^2/D2^2) (H1/H2)

V1/V2= (D1/D2)^2 (H1/H2)

V1/V2= (1/2)^2 (3/1)

V1/V2= 3/4

then V1: V2 = 3:4