1.已知在三角形ABC中,AB=AC=5,P为底边BC上任意一点,PD垂直AB于D,PE垂直AC于点E,则PD+PE=( )2.等边三角形ABC三条角平分线AD,BE,CF交于点O,则OD:OA=( )3.三角形ABC的周长为32,且AB=AC,AD垂直BC于D,三
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![1.已知在三角形ABC中,AB=AC=5,P为底边BC上任意一点,PD垂直AB于D,PE垂直AC于点E,则PD+PE=( )2.等边三角形ABC三条角平分线AD,BE,CF交于点O,则OD:OA=( )3.三角形ABC的周长为32,且AB=AC,AD垂直BC于D,三](/uploads/image/z/9324276-60-6.jpg?t=1%EF%BC%8E%E5%B7%B2%E7%9F%A5%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2CAB%3DAC%3D5%2CP%E4%B8%BA%E5%BA%95%E8%BE%B9BC%E4%B8%8A%E4%BB%BB%E6%84%8F%E4%B8%80%E7%82%B9%2CPD%E5%9E%82%E7%9B%B4AB%E4%BA%8ED%2CPE%E5%9E%82%E7%9B%B4AC%E4%BA%8E%E7%82%B9E%2C%E5%88%99PD%2BPE%3D%28+%EF%BC%892%EF%BC%8E%E7%AD%89%E8%BE%B9%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%89%E6%9D%A1%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BFAD%2CBE%2CCF%E4%BA%A4%E4%BA%8E%E7%82%B9O%2C%E5%88%99OD%EF%BC%9AOA%EF%BC%9D%EF%BC%88+%EF%BC%893.%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E5%91%A8%E9%95%BF%E4%B8%BA32%2C%E4%B8%94AB%EF%BC%9DAC%2CAD%E5%9E%82%E7%9B%B4BC%E4%BA%8ED%2C%E4%B8%89)
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