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a cylinder has a volume of 112π cubic centimeters and a radius of 4 cen…

Question

a cylinder has a volume of 112π cubic centimeters and a radius of 4 centimeters. what is its height? centimeters

Explanation:

Step1: 写出圆柱体积公式

圆柱体积公式为\(V=\pi r^{2}h\)(\(V\)是体积,\(r\)是半径,\(h\)是高)。

Step2: 代入已知值求解\(h\)

已知\(V = 112\pi\),\(r = 4\),代入公式\(112\pi=\pi\times4^{2}\times h\)。
先计算\(4^{2}=16\),则\(112\pi=\pi\times16\times h\)。
两边同时除以\(\pi\),得到\(112 = 16h\)。
再求解\(h\),\(h=\frac{112}{16}=7\)。

Answer:

\(7\)