如图,在
中,∠B=32°,∠C=55°,AD⊥BC于D,AE平分∠BAC交BC于E,DF⊥AE于F,求∠ADF的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2020/10/15/2571465180053504/2572524531531776/STEM/4e1a0a367ab94ed0bce3b15c7e3ca5ed.png?resizew=171)
更新时间:2020-10-16 23:57:28
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解答题-作图题
|
较易
(0.85)
【推荐1】已知,如图,
,
.
上,且
.(保留作图痕迹,不写作法)
(2)连接
,若
,
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c383691e8d740830a865b12d66f7633.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26fdd8e57562ba94e10e7f1d770826d0.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
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解答题-证明题
|
较易
(0.85)
【推荐2】如图,在
中,
,
,点
是
上一点,
,
于点
,交
的平分线于点
,连接
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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