(2)如图②,点P为△ABC的∠ABC和外角∠ACE的角平分线的交点,求证:∠P=½∠A:图②:(3)如图,点P为△ABC的外角∠CBE和∠BCF的角平分线的交点,求证:∠P=90°-½∠A图3:
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/15 00:09:40
![(2)如图②,点P为△ABC的∠ABC和外角∠ACE的角平分线的交点,求证:∠P=½∠A:图②:(3)如图,点P为△ABC的外角∠CBE和∠BCF的角平分线的交点,求证:∠P=90°-½∠A图3:](/uploads/image/z/2675802-66-2.jpg?t=%282%29%E5%A6%82%E5%9B%BE%E2%91%A1%2C%E7%82%B9P%E4%B8%BA%E2%96%B3ABC%E7%9A%84%E2%88%A0ABC%E5%92%8C%E5%A4%96%E8%A7%92%E2%88%A0ACE%E7%9A%84%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BF%E7%9A%84%E4%BA%A4%E7%82%B9%2C%E6%B1%82%E8%AF%81%EF%BC%9A%E2%88%A0P%EF%BC%9D%26%23189%3B%E2%88%A0A%EF%BC%9A%E5%9B%BE%E2%91%A1%EF%BC%9A%EF%BC%883%EF%BC%89%E5%A6%82%E5%9B%BE%2C%E7%82%B9P%E4%B8%BA%E2%96%B3ABC%E7%9A%84%E5%A4%96%E8%A7%92%E2%88%A0CBE%E5%92%8C%E2%88%A0BCF%E7%9A%84%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BF%E7%9A%84%E4%BA%A4%E7%82%B9%2C%E6%B1%82%E8%AF%81%EF%BC%9A%E2%88%A0P%EF%BC%9D90%C2%B0-%26%23189%3B%E2%88%A0A%E5%9B%BE3%EF%BC%9A)
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