摘要:如图:直角△ABC中.∠A=900.斜边AB的垂直平分线交AB于点D.交BC与点E.AE平分∠BAC.则下列关系中不成立的有:( ) ①∠B=∠1.②∠3=∠4.③∠B=∠2.④AC=2CE. ⑤ AE=2DE ⑥AC=1/2AB A.0个 B.1个 C.2个 D.3个
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