如图在矩形ABCD中,AD=2AB,E是AD的中点,点F,G是BC上的点,连接EF,GF,若∠FEG=45°,BF=3cm,GC=2cm,则FG为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/6/0fb93e64-b6bb-4710-a248-aa706d4382bb.png?resizew=162)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/6/0fb93e64-b6bb-4710-a248-aa706d4382bb.png?resizew=162)
A.3cm | B.4cm |
C.![]() | D.![]() |
更新时间:2022-06-25 22:08:43
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【推荐1】如图,
和
都是等边三角形,且点B、C、D在一条直线上,连接
、
,点M、N分别是线段
、
上的两点,且
,
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的形状是( )
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A.等腰三角形 | B.直角三角形 |
C.等边三角形 | D.等腰直角三角形 |
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【推荐2】如图,
和
都是等腰直角三角形,
的顶点A在
的斜边DE上.下列结论:其中正确的有( )
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4e2abc3c0478cd542ea97e60788af3.png)
③
④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da07109df2ed91f9cfc3359b871aa5e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4e2abc3c0478cd542ea97e60788af3.png)
③
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【推荐1】如图,矩形
中,
,
,E为
边的中点,点P、Q为
边上的两个动点,且
,当
( )时,四边形
的周长最小.
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A.3 | B.4 | C.5 | D.![]() |
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【推荐2】如图,若△ABC≌△ADE,则下列结论中不一定成立的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/17/28505929-8707-4291-89c0-3393918f07c2.png?resizew=221)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/17/28505929-8707-4291-89c0-3393918f07c2.png?resizew=221)
A.∠ABD=∠ADB | B.∠BAD=∠CAE | C.∠DAC=∠C | D.∠B=∠ADE |
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【推荐1】如图,
是
的直径,
是
的切线,
交
于
点,若
,
,则
( )
![](https://img.xkw.com/dksih/QBM/2020/6/5/2478097129127936/2478144277905408/STEM/58cc3421c0cf4064a27ef04f684cc2d8.png?resizew=106)
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A.1 | B.![]() | C.2 | D.![]() |
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【推荐2】下列说法正确的是( )
A.在一个直角三角形中,有两边的长度分别是3和5则第三边的长度一定是4 |
B.三边长度分别为1,1,![]() ![]() |
C.三边长度分别是12,35,36的三角形是直角三角形 |
D.一个三角形的三边长分别为a,b,c,且![]() |
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【推荐1】矩形的一内角平分线把矩形的一条边分成3cm和5cm的两部分,则此矩形的周长为( )
A.16cm | B.22cm | C.26cm | D.22cm或26cm |
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【推荐2】如图,平面直角坐标系中,矩形
的边
,点
,
分别在
轴,
轴上,反比例函数
的图象经过点
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值为( )
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