Answer:
381.8 mm^3, you have the 2nd one right.
Step-by-step explanation:
.5D = r
Half the diameters to get the radii.
9 → 4.5
22 → 11
Plug the new numbers into the formula.
(4/3)pi = 4.19
4.5^3 = 91.125
91.125 x 4.19 = 381.81375
