填空题 适中0.65 引用1 组卷242
如图,在
中,
,点D在BC的延长线上,且
,
分别是
的中线和高线.
![](https://img.xkw.com/dksih/QBM/2022/9/28/3076144738533376/3078872094703616/STEM/fdf708b2212d4a8ca21eb8870a3a797e.png?resizew=149)
(1)若
的一边长为3,周长为12,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.svg)
_______ ;
(2)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4397f6e86c69e6b597e7e8635afbfb8.svg)
________ ;
(3)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb663fe83b1f7e93e13d91cc6460f9c.svg)
________ ;
(4)若AC平分
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afde09d82ae96f00c135732baee64776.svg)
________ ;
(5)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7cbe31f9c11d236c7c9611f207f465.svg)
________ ;
![](https://img.xkw.com/dksih/QBM/2022/9/28/3076144738533376/3078872094703616/STEM/fdf708b2212d4a8ca21eb8870a3a797e.png?resizew=149)
(1)若
(2)若
(3)若
(4)若AC平分
(5)若
22-23八年级上·全国·单元测试
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