如图,在Rt△ABC中,∠ACB=90°,CD⊥AB于点D.角平分线BE交CD于点F.若AC=4,BC=3,则EF的长为___________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/21/9ae75374-1915-47bf-abfc-936c58f1e2fe.png?resizew=146)
更新时间:2022-06-05 19:19:42
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【推荐1】如图,在等腰
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【推荐2】如图,在Rt△ABC中,∠C=90°,AC=6,BC=8,则△ABC的外心和内心之间的距离为_____ .
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【推荐1】如图,在Rt△ABC中,∠BAC=90°,AD⊥BC于点D,E为AC边上的中点,连接BE交AD于F,将△AFE沿若AC翻折到△AGE,若四边形AFEG恰好为菱形,连接BG,则tan∠ABG=________ .
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【推荐3】图1是某品牌电动单人沙发的实物图,图2是该沙发的主要功能介绍,其侧面示意图如图3.沙发通过开关控制,打开开关,靠背AB和脚托CD可分别绕点B,C旋转,在旋转过程中,
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