1/3 * 3.14 * 5^2 * 9=(1/3 * 9) * (3.14 * 5) * 5=3 * 15.7 * 5=47.1 * 5=235.51/3 * 3.14 * 6^2 * 4=(1/3 * 6^2) * 3.14 * 4=12 * 12.56=12 * (12+0.56)=144+6.72=150.72