d*h=144, h:d=4:9, 9h=4d, h=4d/9, d*4d/9=144, d=18, 9h=4*18, 9h=72, h=8, V=п*R^2*h, V=3,14*9*9*8=2034,72
d*h=144, h:d=4:9, 9h=4d, h=4d/9, d*4d/9=144, d=18, 9h=4*18, 9h=72, h=8, V=п*R^2*h, V=3,14*9*9*8=2034,72