一小时后要交的!如图,三角形ABC的∠B的外角的平分线BD与∠C的外角的平分线CE相交于点P.求证:点P到三边AB,BC,CA所在直线的距离相等.图↑
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![一小时后要交的!如图,三角形ABC的∠B的外角的平分线BD与∠C的外角的平分线CE相交于点P.求证:点P到三边AB,BC,CA所在直线的距离相等.图↑](/uploads/image/z/13823910-54-0.jpg?t=%E4%B8%80%E5%B0%8F%E6%97%B6%E5%90%8E%E8%A6%81%E4%BA%A4%E7%9A%84%21%E5%A6%82%E5%9B%BE%2C%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E2%88%A0B%E7%9A%84%E5%A4%96%E8%A7%92%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BFBD%E4%B8%8E%E2%88%A0C%E7%9A%84%E5%A4%96%E8%A7%92%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BFCE%E7%9B%B8%E4%BA%A4%E4%BA%8E%E7%82%B9P.%E6%B1%82%E8%AF%81%EF%BC%9A%E7%82%B9P%E5%88%B0%E4%B8%89%E8%BE%B9AB%2CBC%2CCA%E6%89%80%E5%9C%A8%E7%9B%B4%E7%BA%BF%E7%9A%84%E8%B7%9D%E7%A6%BB%E7%9B%B8%E7%AD%89.%E5%9B%BE%E2%86%91)
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