The volume is 33.5mm^3 (or cubed)
Formula : v = 4/3πr^3 or v = 4 x 3.14 x (r x r x r) ÷ 3
~ 2 x 2 x 2 = 8 (we use 2 because the radius is half of the diameter)
v = 4 x 3.14 x 8 ÷ 3 a. Multiply everything together
v = 100.48 ÷ 3 b. Divide by 3
v = 33.493 c. Round (if needed)
v = 33.5
