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歡迎您訪問數(shù)學考題練習:順次連接四邊形ABCD各邊的中點得到的四邊形一!

數(shù)學考題練習:順次連接四邊形ABCD各邊的中點得到的四邊形一

更新時間:2024-01-12 16:42:34作者:貝語網(wǎng)校

順次連接四邊形ABCD各邊的中點得到的四邊形一定是________.

試題答案

平行四邊形

試題解析

連接BD,根據(jù)三角形的中位線定理推出EH∥BD,F(xiàn)G∥BD,EH=BD,F(xiàn)G=BD,得出EH=FG,EH∥FG,根據(jù)平行四邊形的判定推出即可.

解答:

連接BD,

∵E、F、G、H分別是邊AD、DC、BC、AB的中點,

∴EH∥BD,F(xiàn)G∥BD,EH=BD,F(xiàn)G=BD,

∴EH=FG,EH∥FG,

∴四邊形EFGH是平行四邊形,

故答案為:平行四邊形.

點評:本題考查了平行四邊形的判定和三角形的中位線定理得應用,通過做此題培養(yǎng)了學生的推理能力,題目比較好,難度適中.

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