体积测验练习题：圆柱、圆锥与球（含解析）

Question 1

求半径 $r=3$、高 $h=5$ 的圆柱体体积。取 $\pi \approx 3.14$。

Accepted Answer

$V=45\pi \approx 141.3$

Answer

$V=15\pi \approx 47.1$

Answer

$V=90\pi \approx 282.6$

Answer

$V=72\pi \approx 226.1$

Question 2

一个圆锥的半径为 $4$ m，高为 $9$ m。它的体积是多少？取 $\pi \approx 3.14$。

Accepted Answer

$150.72	ext{ m}^3$

Answer

$113.04	ext{ m}^3$

Answer

$452.16	ext{ m}^3$

Answer

$50.24	ext{ m}^3$

Question 3

一个球的直径为 $12$ cm。它的体积是多少？取 $\pi \approx 3.14$。

Accepted Answer

$904.32	ext{ cm}^3$ (approx.)

Answer

$7234.56	ext{ cm}^3$ (approx.)

Answer

$452.16	ext{ cm}^3$ (approx.)

Answer

$452.39	ext{ cm}^3$ (approx.)

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