Answer: 12214.51
Step-by-step explanation:
1.) Use the equation 4/3[tex]\pi[/tex]r in order to calculate the volume of the entire sphere.
4/3[tex]\pi[/tex](18) = 24429.02
2.) Divide the answer in half in order to get the volume of the half sphere.
24429.02 / 2 = 12214.51
