QUESTION IMAGE
Question
what is the volume of this sphere? round your answer to the nearest hundredth. 8 cm cubic centimeters
Step1: 求半径
已知直径\(d = 8cm\),半径\(r=\frac{d}{2}=\frac{8}{2}=4cm\)。
Step2: 代入球体体积公式
球体体积公式为\(V = \frac{4}{3}\pi r^{3}\),将\(r = 4\)代入公式,\(V=\frac{4}{3}\times\pi\times4^{3}\)。
先计算\(4^{3}=4\times4\times4 = 64\),则\(V=\frac{4}{3}\times\pi\times64=\frac{256\pi}{3}\)。
取\(\pi\approx3.14\),\(V=\frac{256\times3.14}{3}=\frac{803.84}{3}\approx267.95\)(\(cm^{3}\))。
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\(267.95\)