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歡迎您訪問數(shù)學(xué)考題練習(xí):在梯形ABCD中,AD∥BC,中位線長(zhǎng)為5,高!

數(shù)學(xué)考題練習(xí):在梯形ABCD中,AD∥BC,中位線長(zhǎng)為5,高

更新時(shí)間:2024-01-12 16:29:18作者:貝語(yǔ)網(wǎng)校

在梯形ABCD中,AD∥BC,中位線長(zhǎng)為5,高為6,則它的面積是

A.30

B.20

C.15

D.10

試題答案

A

試題解析

利用梯形的中位線的定義求得兩底和,再利用梯形的面積計(jì)算方法計(jì)算即可.

解答:∵中位線長(zhǎng)為5,

∴AD+BC=2×5=10,

∴梯形的面積為=30,

故選A.

點(diǎn)評(píng):本題考查的知識(shí)比較全面,需要用到梯形和三角形中位線定理以及平行四邊形的性質(zhì).

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