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歡迎您訪問數學考題練習:下列命題中,真命題是!

數學考題練習:下列命題中,真命題是

更新時間:2024-01-12 12:54:33作者:貝語網校

下列命題中,真命題是

A.對角線相等且互相垂直的四邊形是菱形

B.有一條對角線平分對角的四邊形是菱形

C.菱形是對角線互相垂直平分的四邊形

D.菱形的對角線相等

試題答案

C

試題解析

根據菱形的判定與性質進行判斷.

解答:A、對角線互相垂直平分的四邊形是菱形,故此選項錯誤;

B、有一條對角線平分對角的四邊形不一定是菱形,此選項錯誤;

C、菱形的對角線是互相垂直平分的四邊形,此選項正確;

D、菱形的對角線不一定相等,此選項錯誤.

故選C.

點評:本題考查了菱形的判定與性質.解題的關鍵是熟練掌握菱形有關判定與性質.

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