Answering these 3 questions
1)Volume of a cone is 1/3×πr^2h=1/3×2^2×3×π=4πcm^3And volume of cylinder is π×r^2h=24πcm^3Add them 28π=28×3.14=87.92 or 88cm^32)V=4/3πr^3V=4500π ft^33)V=4/3πr^3Its given972π=4/3π×(d/2)^3 972=4/3×d^3/8972×8×3/4=d^3d=18inches
