(4p +3)(5p2 + 6) is your answer
i think its 3√3 because that seems like the logical answer to me.
When you square the radius = 6×6= 36. Multiply 36×3×3.14=339.12. Using the formula, you then multiply 1/3×339.12=339.12/3= 113.04 in^3. Final answer is 113.04^3