如图,在三角形ABC中,点E是角ABC,角ACB角平分线的交点,点F是角ABC,角ACB外角平分线的交点点A1是内角角ABC外角角ACD平分线的交点.探究:角BEC和角BFC满足何种数量关系. 在线等啊啊啊啊啊
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/24 09:54:53
![如图,在三角形ABC中,点E是角ABC,角ACB角平分线的交点,点F是角ABC,角ACB外角平分线的交点点A1是内角角ABC外角角ACD平分线的交点.探究:角BEC和角BFC满足何种数量关系. 在线等啊啊啊啊啊](/uploads/image/z/14972807-47-7.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2C%E7%82%B9E%E6%98%AF%E8%A7%92ABC%2C%E8%A7%92ACB%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BF%E7%9A%84%E4%BA%A4%E7%82%B9%2C%E7%82%B9F%E6%98%AF%E8%A7%92ABC%2C%E8%A7%92ACB%E5%A4%96%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BF%E7%9A%84%E4%BA%A4%E7%82%B9%E7%82%B9A1%E6%98%AF%E5%86%85%E8%A7%92%E8%A7%92ABC%E5%A4%96%E8%A7%92%E8%A7%92ACD%E5%B9%B3%E5%88%86%E7%BA%BF%E7%9A%84%E4%BA%A4%E7%82%B9.%E6%8E%A2%E7%A9%B6%EF%BC%9A%E8%A7%92BEC%E5%92%8C%E8%A7%92BFC%E6%BB%A1%E8%B6%B3%E4%BD%95%E7%A7%8D%E6%95%B0%E9%87%8F%E5%85%B3%E7%B3%BB.+%E5%9C%A8%E7%BA%BF%E7%AD%89%E5%95%8A%E5%95%8A%E5%95%8A%E5%95%8A%E5%95%8A)
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