三角形abc的3个定点都在圆o上I是三角形abc角平分线的交点且AI的延长线叫圆O于点D求证DB=DC=DI要画图,坐等(┬_┬)重点是画图啊
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![三角形abc的3个定点都在圆o上I是三角形abc角平分线的交点且AI的延长线叫圆O于点D求证DB=DC=DI要画图,坐等(┬_┬)重点是画图啊](/uploads/image/z/6592081-49-1.jpg?t=%E4%B8%89%E8%A7%92%E5%BD%A2abc%E7%9A%843%E4%B8%AA%E5%AE%9A%E7%82%B9%E9%83%BD%E5%9C%A8%E5%9C%86o%E4%B8%8AI%E6%98%AF%E4%B8%89%E8%A7%92%E5%BD%A2abc%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BF%E7%9A%84%E4%BA%A4%E7%82%B9%E4%B8%94AI%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E5%8F%AB%E5%9C%86O%E4%BA%8E%E7%82%B9D%E6%B1%82%E8%AF%81DB%3DDC%3DDI%E8%A6%81%E7%94%BB%E5%9B%BE%2C%E5%9D%90%E7%AD%89%EF%BC%88%E2%94%AC%EF%BC%BF%E2%94%AC%EF%BC%89%E9%87%8D%E7%82%B9%E6%98%AF%E7%94%BB%E5%9B%BE%E5%95%8A)
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