如图,在
中,
,按以下步骤作图:①分别以点A和点C为圆心,大于
的长为半径作弧,两弧相交于M,N两点;②作直线MN交BC于点D,连接AD.若
,
,则AC的长为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93148adbc6e856da9a9d263f485d003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5fc4ad65b723b6a8da4c8dac154e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893582269472768/2969496793964544/STEM/3ffe6082-6a06-49f8-a87f-cf005b0f0372.png?resizew=209)
21-22九年级上·四川成都·期末 查看更多[3]
四川省成都市金牛区2021-2022学年九年级上学期期末数学试题四川省成都市成华区2021-2022学年九年级上学期期末学业质量监测数学试题(已下线)第13讲 正切-【帮课堂】2022-2023学年九年级数学下册同步精品讲义(苏科版)
更新时间:2022-04-30 20:39:36
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