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更新时间:2024-03-15 16:18:35
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【推荐1】如图,
中,
,
,
的平分线与
的垂直平分线交于点
,将
沿
(
在
上,
在
上)折叠,点
与点
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【推荐2】如图,△ABC中,AB=AC,AB的垂直平分线交边AB于D点,交边AC于E点,若△ABC与△EBC的周长分别是40cm,24cm,则AB=_______ cm.
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【推荐2】【问题探究】在等边三角形ABC中,AD⊥BC于点D,AB=2.
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(1)如图1.E为AD的中点,则点E到AB的距离为______ ;
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(1)如图1.E为AD的中点,则点E到AB的距离为
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【推荐1】如图,在
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【推荐2】如图,等边
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