ProblemV=43πr3, r=5V = \tfrac{4}{3}\pi r^3,\ r = 5V=34πr3, r=5Step-by-step solution球體的體積:V=43πr3V = \tfrac{4}{3}\pi r^3V=34πr3。計算 r3=53=125r^3 = 5^3 = 125r3=53=125。代入:V=43π⋅125=5003πV = \tfrac{4}{3}\pi \cdot 125 = \tfrac{500}{3}\piV=34π⋅125=3500π。取近似值:≈523.6\approx 523.6≈523.6。AnswerV=5003π≈523.6V = \tfrac{500}{3}\pi \approx 523.6V=3500π≈523.6Want to solve a different problem? Open the volume solver →Related worked examples/solve/geometry/volume-cube-side-4