已知直线m平行n,A,B,C都是定点,AB=a,AC=b,点P在AC上,BP的延长线交直线m于D.问:P在何处两三角形面积最小两三角形面积和最小
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![已知直线m平行n,A,B,C都是定点,AB=a,AC=b,点P在AC上,BP的延长线交直线m于D.问:P在何处两三角形面积最小两三角形面积和最小](/uploads/image/z/14886592-16-2.jpg?t=%E5%B7%B2%E7%9F%A5%E7%9B%B4%E7%BA%BFm%E5%B9%B3%E8%A1%8Cn%2CA%2CB%2CC%E9%83%BD%E6%98%AF%E5%AE%9A%E7%82%B9%2CAB%3Da%2CAC%3Db%2C%E7%82%B9P%E5%9C%A8AC%E4%B8%8A%2CBP%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%A4%E7%9B%B4%E7%BA%BFm%E4%BA%8ED.%E9%97%AE%EF%BC%9AP%E5%9C%A8%E4%BD%95%E5%A4%84%E4%B8%A4%E4%B8%89%E8%A7%92%E5%BD%A2%E9%9D%A2%E7%A7%AF%E6%9C%80%E5%B0%8F%E4%B8%A4%E4%B8%89%E8%A7%92%E5%BD%A2%E9%9D%A2%E7%A7%AF%E5%92%8C%E6%9C%80%E5%B0%8F)
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