如图,已知AM∥BN,∠A=64°,点P是射线AM上一动点(与点A不重合),BC、BD分别平分∠ABP和∠PBN,分别交射线AM于点C、D,下列结论:
①∠ACB=∠CBN;②∠CBD=64°;③当∠ACB=∠ABD时,∠ABC=29°;④当点P运动时,∠APB:∠ADB=2:1的数量关系不变.其中正确结论的有_________ (填序号).
①∠ACB=∠CBN;②∠CBD=64°;③当∠ACB=∠ABD时,∠ABC=29°;④当点P运动时,∠APB:∠ADB=2:1的数量关系不变.其中正确结论的有
![](https://img.xkw.com/dksih/QBM/2021/7/7/2758895482748928/2796137544761344/STEM/7dc3fe69-93da-4b92-8369-09d765b19322.png)
更新时间:2021-09-01 15:05:59
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