梯形两条对角线长分别是6、8且互相垂直,则该梯形的中位线长为_____ .
更新时间:2019-05-28 14:40:23
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【推荐1】如图,在等腰梯形
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【推荐2】如图 ,直角梯形 ABCD 中, AD ∥ BC , AB ⊥ BC,AD 2 ,将腰CD 以点 D 为中心逆时针旋转 90°至 DE ,连接 AE、CE ,△ADE 的面积为 3,则 BC 的长为_______ .
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