已知如图,
平分
,
平分
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db91877e869a8d58b2bab2c39756d7fa.png)
(1)若
,求
;
(2)若
,其他条件不变,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db91877e869a8d58b2bab2c39756d7fa.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a9dcd1f37c65ff551b9e2322b6ddfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27935c1ef4df2d52ac697678a3c8f39d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec6ce73c6786d50028addff089bbb64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27935c1ef4df2d52ac697678a3c8f39d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/4a0fe4ca-f548-4d32-82b6-e7e16e1c70c2.png?resizew=122)
20-21七年级上·广东惠州·期末 查看更多[2]
更新时间:2021-03-21 21:11:18
|
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解答题-问答题
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适中
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【推荐1】如图,OD平分∠BOC,OE平分∠AOC,若∠BOC=80°,∠AOC=40°.
(1)求出∠AOB及其补角的度数;
(2)请求出∠DOC和∠AOE的度数,并判断∠DOE与∠AOB是否互补,并说明理由.
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解答题-计算题
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适中
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【推荐2】角与线段的计算
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(1)如图
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(1)如图
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
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(2)如图
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解答题-证明题
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适中
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【推荐1】如图,O为直线
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![](https://img.xkw.com/dksih/QBM/2024/2/7/3427932779954176/3429385464479744/STEM/c4408bb8ac974c068fbade04ab23a88c.png?resizew=223)
(1)请写出图中小于平角的角;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/618ede24ca37aa33a3789867be8f66b4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95a92fcd0cd5e55f1d32d42504a5690.png)
![](https://img.xkw.com/dksih/QBM/2024/2/7/3427932779954176/3429385464479744/STEM/c4408bb8ac974c068fbade04ab23a88c.png?resizew=223)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
(3)请通过计算说明
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
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解答题-问答题
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适中
(0.65)
【推荐2】如图,直线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dfd76d4b9cd52e6f101538689fe1778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e349cfcace8c08587bdb1a1fbf125cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
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