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歡迎您訪問數學考題練習:三個正方形的面積如圖,當B=144、C=169!

數學考題練習:三個正方形的面積如圖,當B=144、C=169

更新時間:2024-01-12 16:36:40作者:貝語網校

三個正方形的面積如圖,當B=144、C=169時,則A的值為

A.313

B.144

C.169

D.25

試題答案

D

試題解析

根據a2+b2=c2,結合B=144、C=169,可求出a2的值,繼而可得出A的值.

解答:

解:由題意可得:a2+b2=c2

解得:a2=25,即A的值為25.

故選D.

點評:此題考查了勾股定理的正方形的關鍵,關鍵是根據圖形得出a2+b2=c2,題目出的很好,注意掌握勾股定理的表達式.

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