一个外圈半径为8CM,内圈半径为6CM的空心圆柱钢管,长度为20CM,要在这个钢管中注满水,则水的体积是( )A.1280π B.720π C.560...

作者: tihaiku 人气: - 评论: 0
问题 一个外圈半径为8CM,内圈半径为6CM的空心圆柱钢管,长度为20CM,要在这个钢管中注满水,则水的体积是( )
选项 A.1280π B.720π C.560π D.400π
答案 C
解析 求注水的体积,也就是求空心圆柱的体积,用大的体积减去小的体积即可。故本题答案为C。

相关内容:外圈,半径,内圈,空心,圆柱,钢管,长度,体积,A.1280,C.560...

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