如图,直线
分别与直线
、
相交于点
、
,且
,
、
分别平分
和
,则
为________ 三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5dbfcff5c8b5d4e312a9247b2b8b0a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4dd47d838804e49cc5bec8db349d1f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f9c623c607fc6b3983e0f8fe042317d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd0efc142e3abb0d8f21e6447f0a7a.png)
![](https://img.xkw.com/dksih/QBM/2020/8/18/2530324275781632/2531796402438144/STEM/e4d3029b-f81c-42b4-bfbe-00e9af4caa07.png)
更新时间:2020-08-20 10:55:52
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【推荐2】如图,在矩形ABCD中,AD=
AB,∠BAD的平分线交BC于点E,DH⊥AE于点H,连接BH并延长交CD于点F,连接DE交BF于点O,证明下列结论:①∠AED=∠CED ②△ABE≌△AHD ③HF=AB ④H是BF中点 ⑤BC-CF=2HE.其中正确的结论有____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
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【推荐1】如图,已知
,
.
求证:
.
请完善证明过程,在括号内填写相应的理论依据.
证明: ∵
(已知)
(______)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dce3db3317655f992cc12648fce62392.png)
(______)
(______)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b309f91b367f7c17eae1065882e3825.png)
(______)
______
(______)
(______)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597bbee9476e853b2dbd7f30f367444e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df4d67aa2a39c15abaa0cbc09432f1fb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/16/54ba7ffa-117a-431e-a9fd-e8274c5c956d.png?resizew=212)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78fa0ec11d6cd9e7c970e5eab798cd7c.png)
请完善证明过程,在括号内填写相应的理论依据.
证明: ∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df4d67aa2a39c15abaa0cbc09432f1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/682dc163baa74e18746d3d52da6cff7e.png)
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【推荐2】如图,矩形
的顶点
,
在反比例函数
的图象上,若点
的坐标为
,
,
轴,则点
的坐标为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82be1703fea194fbd9a520f879e16b8a.png)
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【推荐1】在
中,
,
,点O是
的中点,将
绕着点O向三角形外部旋转
角时
,得到
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恰为轴对称图形时,
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147de24f071e316b68fd2e78e3c84545.png)
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【推荐2】在平面直角坐标系中,已知∠ABC=90°,AB=BC,点A(-3,0),B(1,2),则点C的坐标是_________ .
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