如图,已知扇形AOB的半径为6,圆心角为90°,E是半径OA上一点,F是
上一点.将扇形AOB沿EF对折,使得折叠后的圆弧
恰好与半径OB相切于点G.若OE=4,则O到折痕EF的距离为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
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2017·江苏扬州·二模 查看更多[4]
江苏省高邮市、宝应县2017届九年级下学期网上阅卷第二次适应性训练(二模)数学试题【市级联考】山东省寿光市2018届九年级上学期期末考试数学试题(已下线)【万唯原创】2018年河北省中考数学-面对面--练习册6.1+6.22022年内蒙古包头市东河区中考数学模拟试卷
更新时间:2017-05-29 09:41:02
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