Answer :
V = PI x r^2 x h
63679 = 3.14 x r^2 x 30
63679 = r^2 x 94.2
r^2 = 63679 / 94.2
r^2 = 675.997 = 676
r = sqrt(676) = 26
63679 = 3.14 x r^2 x 30
63679 = r^2 x 94.2
r^2 = 63679 / 94.2
r^2 = 675.997 = 676
r = sqrt(676) = 26