(资料图片)
今天小编宋丹来为大家解答以上的问题。如图ce是三角形abc的外角∠acd的平分线，如图ce是三角形abc的外角角acd的平分线相信很多小伙伴还不知道,现在让我们一起来看看吧！
1、亲，我帮你画图了，应该是这样把，首先，CE为角ACD角平分线，所以，可以分成两个∠3，三角形外角性质，一个角的外角=另外两个角之和，然后我们可以得到
2、 ∠1=∠E+∠3.，而且
3、 ∠1=180°-∠B-∠2
4、，然后∠2=180°-2∠3，我们得到∠1=∠B-2∠3，
5、从而有∠E+∠3=2∠3-∠B，得到∠3=∠E+∠B
6、所以∠1=∠E+∠3=∠E+∠E+∠B=∠B+2∠E，证毕
本文就为大家分享到这里，希望小伙伴们会喜欢。
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-30
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-29
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-28
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27
2023-05-27