如图,在
中,
、
分别是
、
边上的点,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afde09d82ae96f00c135732baee64776.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e318f1854888c6c2cbfe70c18e21fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afde09d82ae96f00c135732baee64776.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/13/35ee62c4-e1c7-41f8-a622-3a07969c640e.png?resizew=170)
22-23七年级下·陕西西安·期末 查看更多[2]
更新时间:2023-07-05 22:21:45
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【推荐1】定义:当三角形中一个内角α是另一个内角的两倍时,我们称此三角形为“倍角三角形”,其中α称为“倍角”,如果一个“倍角三角形”的一个内角为99°,那么倍角α的度数是_____ .
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