如图,在
中,
,
,则与
互为余角的角有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/11/2853155a-4a71-4cce-a057-3482c5691ec3.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cd6c45556e76af03be8b521396bed6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/11/2853155a-4a71-4cce-a057-3482c5691ec3.png?resizew=160)
A.2个 | B.3个 | C.4个 | D.5个 |
2023七年级下·全国·专题练习 查看更多[2]
(已下线)专题2.1 两条直线的位置关系(专项训练)-2022-2023学年七年级数学下册《同步考点解读·专题训练》(北师大版)江苏省徐州市丰县七校2023-2024学年七年级上学期12月月考数学试题
更新时间:2023-03-01 10:41:11
|
【知识点】 直角三角形的两个锐角互余解读
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【推荐1】如图,在
中,
,
,
是斜边
上的高,
,
,垂足分别为
、
,则图中与
(
除外)相等的角的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/9fbf9a3f-19d1-485f-9cbd-f3ac27b32108.png?resizew=219)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/9fbf9a3f-19d1-485f-9cbd-f3ac27b32108.png?resizew=219)
A.3个 | B.4个 | C.5个 | D.6个 |
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【推荐2】如图,
是
的直径,点
在
的延长线上,
与
相切于点
,若
,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/7a2a7619-7d77-4db0-9c35-b6ee36a64656.png?resizew=178)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/7a2a7619-7d77-4db0-9c35-b6ee36a64656.png?resizew=178)
A.![]() | B.![]() | C.![]() | D.![]() |
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