(1)如图,已知∠1=∠2,∠3=65°,求∠4的度数.
(2)一艘船从O处出发沿北偏东60°方向行驶至A,然后向正东方向行驶至C后又改变航向,朝与出发时相反的方向行驶至B.请画出该船的航线示意图,并求∠ACB的度数.
(2)一艘船从O处出发沿北偏东60°方向行驶至A,然后向正东方向行驶至C后又改变航向,朝与出发时相反的方向行驶至B.请画出该船的航线示意图,并求∠ACB的度数.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/10/27dba392-351b-4be3-857b-4e4b3590d2e8.png?resizew=138)
更新时间:2021-09-12 17:38:37
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【推荐1】如图,
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请把下面的解答过程补写完整,并在括号内填写相应的依据:
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请把下面的解答过程补写完整,并在括号内填写相应的依据:
解:
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