如图,在等腰直角三角形
中,
,
外角平分线交
延长线于点D,
,垂足是E,若
周长是8,则线段
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ff1dc90384c31780d24bc92b757c9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd657e48b15b9b54a55817e2c26b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
A.![]() | B.9 | C.8 | D.7 |
23-24八年级上·黑龙江牡丹江·期末 查看更多[3]
黑龙江省牡丹江市2023-2024学年八年级上学期期末数学试题黑龙江省牡丹江市第十四中学2023-2024学年八年级上学期期末数学试题(已下线)专题01+等腰三角形与直角三角形01(9大题型+优选提升题)-备战2023-2024学年八年级数学下学期期末真题分类汇编(北师大版)
更新时间:2024-03-10 22:46:57
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【推荐1】如图,已知点
在
外部,点
在边
上,
交
于点
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![](https://img.xkw.com/dksih/QBM/2020/12/9/2610481410056192/2617621582512128/STEM/fb64820e-11d3-4779-b692-267f734697ab.png)
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A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】如图,点D,E分别为△ABC的边AB,AC上的点,连接DE并延长至F,使EF=DE,连接FC.若FC∥AB,AB=5,CF=3,则BD的长等于( )
A.1 | B.2 | C.3 | D.5 |
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【推荐1】如图,在
中,
,
,
的垂直平分线
交
于点
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于点
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![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/1b6127ed-4071-4186-9529-8c95a8c280ee.png?resizew=176)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
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A.8 | B.10 | C.12 | D.14 |
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【推荐2】下列说法正确的是( )
A.已知两边及一角只能作出唯一的三角形 |
B.到![]() ![]() |
C.腰长相等的两个等腰直角三角形全等 |
D.点![]() ![]() ![]() |
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