名校
1 . 完成下面推理填空:
如图,E、F分别在AB和
上,
,
与
互余,
于G.
.
证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/163e2eb13b42eb3d675ba133b96fff40.png)
( )
(已知)
______
______( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8345565ba8cc4285e361708c9b017b30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b09bea267786adc78605733a64bb62ca.png)
.
与
互余
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38009d1032a40b2cfc74f97554082db1.png)
______
______
(_________________________)
如图,E、F分别在AB和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9705818c7017f96619e198fefd16a711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a598a35e6a4bfb3a5f08b55b70bdc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/163e2eb13b42eb3d675ba133b96fff40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b96de1f1e955ecfe026fb2309ade583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d864a07121c185e15153e73e344bc50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8345565ba8cc4285e361708c9b017b30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b09bea267786adc78605733a64bb62ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a9d83dc3619550b7341cdb5fcce83d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10f86e42457598fd9e2bf05ec38e6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38009d1032a40b2cfc74f97554082db1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc6290efdeed575038c89af35537867.png)
您最近一年使用:0次
2 .
的余角是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e47e80120afb8d7797daa39d54170dc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-05更新
|
88次组卷
|
3卷引用:广东省深圳市龙华区2023-2024学年七年级下学期期中数学试题
3 . 两块不同的三角板按如图所示摆放,两个直角顶点C重合,
,
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/224efa56edbd3f01436b25c3e66adb50.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4a288554fe25fe0a72530eb29756e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3355e49927183f4b24df47725a0503.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/224efa56edbd3f01436b25c3e66adb50.png)
您最近一年使用:0次
4 . 已知
,则
的余角的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28a05406ac51a6b20af38d4fbd3f5062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 一个角的余角是
,则这个角的度数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ad99328cf6ed21023712510306db1f9.png)
您最近一年使用:0次
6 . 如图,
,
交于点O,
于O,连接
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7c903121c158dafe5e7f3712897ed8.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/5a4a26b9ab8f36629aee288b6a0fc77c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7662c060b856ef284ec0f34302499f6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7c903121c158dafe5e7f3712897ed8.png)
您最近一年使用:0次
7 . 如图,把一块直角三角板的直角顶点放在直尺的一边上,若
,则
的度数为___________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7784252c3519a88d8283fad53e7fcd92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
您最近一年使用:0次
名校
8 . 若
,则
的余角等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee54b9b398ce80cd054b56173fe810f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 若
,则
的余角是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddd7c9738638e8868efa7dee27ffb44d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
A.43° | B.47° | C.57° | D.137° |
您最近一年使用:0次
2024-04-30更新
|
84次组卷
|
3卷引用:广东省河源市紫金县2023-2024学年七年级下学期期中数学试题
10 . 如图,将一张长方形纸片折叠成如图所示的形状,若
,则
的度数为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/549e5f33a19a69be46158fd002f383ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
您最近一年使用:0次