如图,在
中,
,
,
,点D是AB的中点,点E是边BC上一动点,将
沿DE所在直线翻折到
的位置,
交边BC于点F,当
为直角三角形时,
的长为________ .
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19-20九年级下·河南平顶山·阶段练习 查看更多[5]
河南省舞钢市新时代国际学校2019-2020学年九年级下学期第二次月考数学试题2020年河南省周口市扶沟县中考数学一模试题(已下线)【万唯原创】2019年河南省中考数学试题研究 河南数学第四章三角形2(已下线)【万唯原创】多解题·基础专练(二)(已下线)【万唯原创】2020年河南省中考数学试题-河南试题正文-第一部分第四章2上
更新时间:2020-07-05 23:17:31
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