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歡迎您訪問每日一練:下面幾何體中,截面圖形不可能是圓!

每日一練:下面幾何體中,截面圖形不可能是圓

更新時間:1970-01-01 08:00:00作者:貝語網校

下面幾何體中,截面圖形不可能是圓

A.圓柱

B.圓錐

C.球

D.正方體

試題答案

D

試題解析

分析:根據圓柱、圓錐、球、正方體的形狀特點判斷即可.

解答:本題中,用平面去截正方體,得的截面可能為三角形、四邊形、五邊形、六邊形,無論如何,截面也不會有弧度不可能是圓,故選D.

點評:本題考查幾何體的截面,關鍵要理解面與面相交得到線.

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