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歡迎您訪問數學考題練習:如圖,在?ABCD中,AC和BD相交于點O,則!

數學考題練習:如圖,在?ABCD中,AC和BD相交于點O,則

更新時間:2024-01-12 16:28:39作者:貝語網校

如圖,在?ABCD中,AC和BD相交于點O,則下面條件能判定?ABCD是矩形的是

A.AC=BD

B.AC⊥BD

C.AD=BC

D.AB=AD

試題答案

A

試題解析

根據矩形的判定定理對角線互相平分且相等的四邊形是矩形,以及利用菱形的判定定理分別得出圖形的形狀,據此分析判斷.

解答:A.∵AC=BD,對角線相等,可判定平行四邊形ABCD是矩形,故此選項正確;

B、AC⊥BD,對角線互相垂直,可判定平行四邊形ABCD是菱形.故此選項錯誤;

C、AD本來就等于BC,無法判定平行四邊形ABCD是矩形,故此選項錯誤;

D.AB=BC,鄰邊相等的平行四邊形,可判定平行四邊形ABCD是菱形.故此選項錯誤.

故選:A.

點評:此題主要考查了矩形的判定,此題用到的知識點為:對角線相等的平行四邊形是矩形,注意與菱形的判定比較有利于對知識的靈活應用.

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