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如图,已知菱形ABCD中,E是AB中点,且DE⊥AB,AE=2. (1)求∠ABC的度数; (2)求对角线AC、BD的长; (3)求菱形ABCD的面积.
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教案备课库《006A学案菱形的性质(二)》真题及答案
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