What is the radius of a hemisphere with a volume of 66

Answer 1

66 = (2/3)pi(r^3)= volume of half a sphere= a hemisphere's volume

(3/2)66 = pi(r^3)

33(3) = 99 = pi(r^3)

r^3 = 99/pi= 31.51

r = cube root of 99/pi

= about 3.16 = radius

(2/3)pi(3.16)^3

=2pi/3)(31.53)

= about 66.08