如图,在
中,按以下步骤作图:①分别以B,C为圆心,以大于
的长为半径作弧,两弧相交于两点M,N;②作直线
交
于点D,连接
.若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41db498f025052df2dbb1e50ab672675.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d452f74791f58e8400cb8d2d6038dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffc2a946e72f26a8af584d8ead3a396.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d545cb81edcdaf8c267bc4b3f19c53ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41db498f025052df2dbb1e50ab672675.png)
更新时间:2024-04-21 11:38:44
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【推荐1】从A,B两题中任选一题作答:
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