三角形ABC之比为3:5:6,其相似三角形A'B'C'最大边为15,且三角形A'B'C'与三角形ABC的相似比为2:3,则三角形ABC的最小边为多少?还有1题三角形ABC中,AB=9,AC=12,BC=18,D为AC上一点,且CD=2\3AC,在AB上截取
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![三角形ABC之比为3:5:6,其相似三角形A'B'C'最大边为15,且三角形A'B'C'与三角形ABC的相似比为2:3,则三角形ABC的最小边为多少?还有1题三角形ABC中,AB=9,AC=12,BC=18,D为AC上一点,且CD=2\3AC,在AB上截取](/uploads/image/z/1837997-53-7.jpg?t=%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B9%8B%E6%AF%94%E4%B8%BA3%3A5%3A6%2C%E5%85%B6%E7%9B%B8%E4%BC%BC%E4%B8%89%E8%A7%92%E5%BD%A2A%27B%27C%27%E6%9C%80%E5%A4%A7%E8%BE%B9%E4%B8%BA15%2C%E4%B8%94%E4%B8%89%E8%A7%92%E5%BD%A2A%27B%27C%27%E4%B8%8E%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E7%9B%B8%E4%BC%BC%E6%AF%94%E4%B8%BA2%3A3%2C%E5%88%99%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E6%9C%80%E5%B0%8F%E8%BE%B9%E4%B8%BA%E5%A4%9A%E5%B0%91%3F%E8%BF%98%E6%9C%891%E9%A2%98%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%EF%BC%8CAB%3D9%2CAC%3D12%2CBC%3D18%EF%BC%8CD%E4%B8%BAAC%E4%B8%8A%E4%B8%80%E7%82%B9%EF%BC%8C%E4%B8%94CD%3D2%5C3AC%EF%BC%8C%E5%9C%A8AB%E4%B8%8A%E6%88%AA%E5%8F%96)
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