1.在三角形abc(我打的是小写,其实是大写)中,ad平分角bac,be垂直于ac垂足为点e,交ad于点f,试着说明角afe=½(角abc+角c).2.在三角形abc中,角a=角abd,角c=角bdc=角abc,求,角dbc的度数.3.bd是三
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![1.在三角形abc(我打的是小写,其实是大写)中,ad平分角bac,be垂直于ac垂足为点e,交ad于点f,试着说明角afe=½(角abc+角c).2.在三角形abc中,角a=角abd,角c=角bdc=角abc,求,角dbc的度数.3.bd是三](/uploads/image/z/8626786-34-6.jpg?t=1.%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2abc%EF%BC%88%E6%88%91%E6%89%93%E7%9A%84%E6%98%AF%E5%B0%8F%E5%86%99%2C%E5%85%B6%E5%AE%9E%E6%98%AF%E5%A4%A7%E5%86%99%EF%BC%89%E4%B8%AD%2Cad%E5%B9%B3%E5%88%86%E8%A7%92bac%2Cbe%E5%9E%82%E7%9B%B4%E4%BA%8Eac%E5%9E%82%E8%B6%B3%E4%B8%BA%E7%82%B9e%2C%E4%BA%A4ad%E4%BA%8E%E7%82%B9f%2C%E8%AF%95%E7%9D%80%E8%AF%B4%E6%98%8E%E8%A7%92afe%EF%BC%9D%26%23189%3B%EF%BC%88%E8%A7%92abc%2B%E8%A7%92c%EF%BC%89.2.%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2abc%E4%B8%AD%2C%E8%A7%92a%EF%BC%9D%E8%A7%92abd%2C%E8%A7%92c%EF%BC%9D%E8%A7%92bdc%EF%BC%9D%E8%A7%92abc%2C%E6%B1%82%2C%E8%A7%92dbc%E7%9A%84%E5%BA%A6%E6%95%B0.3.bd%E6%98%AF%E4%B8%89)
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