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歡迎您訪問數學考題練習:在菱形ABCD中,兩條對角線AC=6,BD=8!

數學考題練習:在菱形ABCD中,兩條對角線AC=6,BD=8

更新時間:2024-01-12 16:34:25作者:貝語網校

在菱形ABCD中,兩條對角線AC=6,BD=8,則此菱形的邊長為

A.5

B.6

C.8

D.10

試題答案

A

試題解析

根據菱形對角線互相垂直平分的性質,即可求AO,BO,根據勾股定理即可求AB的值,即菱形的邊長.

解答:解:∵菱形對角線互相垂直平分

∴△AOB為直角三角形,且AC=2AO,BD=2BO,

∴AO=3,BO=4,

∴AB==5,

故選 A.

點評:本題考查了菱形對角線互相垂直平分的性質,考查了勾股定理在直角三角形中的運用,本題中根據勾股定理求AB的值是解題的關鍵.

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