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歡迎您訪問數(shù)學考題練習:如圖,梯形ABCD的中位線EF交對角線BD于G!

數(shù)學考題練習:如圖,梯形ABCD的中位線EF交對角線BD于G

更新時間:2024-01-12 16:31:55作者:貝語網(wǎng)校

如圖,梯形ABCD的中位線EF交對角線BD于G,若BC=2AD,則GF=________EG.

試題答案

2

試題解析

利用三角形的中位線定理和梯形的中位線定理分別表示出EG=AD,GF=BC=AD,從而得到GF與EG的關(guān)系.

解答:∵梯形ABCD的中位線EF交對角線BD于G,

∴GF與EG分別是△BAD和△DBC的中位線,BC=2AD,

∴EG=AD,GF=BC=AD,

∴GF=2EG,

故答案為2.

點評:本題利用了梯形中位線定理、平行線分線段成比例定理的推論、三角形中位線定理.

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