如图,BE,CF是锐角三角形ABC的两条高,D是BC的中点(1)若∠A=50°,求∠EDF的度数(2)若要使△DEF为等边三角形,则△ABC应满足什么条件?请说明理由.
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![如图,BE,CF是锐角三角形ABC的两条高,D是BC的中点(1)若∠A=50°,求∠EDF的度数(2)若要使△DEF为等边三角形,则△ABC应满足什么条件?请说明理由.](/uploads/image/z/9284264-8-4.jpg?t=%E5%A6%82%E5%9B%BE%2CBE%2CCF%E6%98%AF%E9%94%90%E8%A7%92%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E4%B8%A4%E6%9D%A1%E9%AB%98%2CD%E6%98%AFBC%E7%9A%84%E4%B8%AD%E7%82%B9%281%29%E8%8B%A5%E2%88%A0A%3D50%C2%B0%2C%E6%B1%82%E2%88%A0EDF%E7%9A%84%E5%BA%A6%E6%95%B0%EF%BC%882%EF%BC%89%E8%8B%A5%E8%A6%81%E4%BD%BF%E2%96%B3DEF%E4%B8%BA%E7%AD%89%E8%BE%B9%E4%B8%89%E8%A7%92%E5%BD%A2%2C%E5%88%99%E2%96%B3ABC%E5%BA%94%E6%BB%A1%E8%B6%B3%E4%BB%80%E4%B9%88%E6%9D%A1%E4%BB%B6%3F%E8%AF%B7%E8%AF%B4%E6%98%8E%E7%90%86%E7%94%B1.)
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