矩形ABCO的面积为10,OA比OC大3,E为BC的中点,以OE为直径的⊙O'交x 轴于D,DF⊥AE于F.(1) 求OA、OC的长.2 求df的长(3)BC是否存在点Q使角AQO=90度若存在求出Q点坐标若不存在说理由请加解析
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![矩形ABCO的面积为10,OA比OC大3,E为BC的中点,以OE为直径的⊙O'交x 轴于D,DF⊥AE于F.(1) 求OA、OC的长.2 求df的长(3)BC是否存在点Q使角AQO=90度若存在求出Q点坐标若不存在说理由请加解析](/uploads/image/z/7622127-63-7.jpg?t=%E7%9F%A9%E5%BD%A2ABCO%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BA10%2COA%E6%AF%94OC%E5%A4%A73%2CE%E4%B8%BABC%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E4%BB%A5OE%E4%B8%BA%E7%9B%B4%E5%BE%84%E7%9A%84%E2%8A%99O%27%E4%BA%A4x+%E8%BD%B4%E4%BA%8ED%2CDF%E2%8A%A5AE%E4%BA%8EF.%281%29+%E6%B1%82OA%E3%80%81OC%E7%9A%84%E9%95%BF.2+%E6%B1%82df%E7%9A%84%E9%95%BF%EF%BC%883%EF%BC%89BC%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%E7%82%B9Q%E4%BD%BF%E8%A7%92AQO%3D90%E5%BA%A6%E8%8B%A5%E5%AD%98%E5%9C%A8%E6%B1%82%E5%87%BAQ%E7%82%B9%E5%9D%90%E6%A0%87%E8%8B%A5%E4%B8%8D%E5%AD%98%E5%9C%A8%E8%AF%B4%E7%90%86%E7%94%B1%E8%AF%B7%E5%8A%A0%E8%A7%A3%E6%9E%90)
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