如图.AB,CD交于点O.E,F分别是DC,AB的中点.AD=6 CB=14.求EF的长.如图.AB,CD交于点O.E,F分别是DC,AB的中点.AD=6 CB=14.求EF的长.P.S这就是这道题的图图哈~临时画的,不是很精确……
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![如图.AB,CD交于点O.E,F分别是DC,AB的中点.AD=6 CB=14.求EF的长.如图.AB,CD交于点O.E,F分别是DC,AB的中点.AD=6 CB=14.求EF的长.P.S这就是这道题的图图哈~临时画的,不是很精确……](/uploads/image/z/1500549-69-9.jpg?t=%E5%A6%82%E5%9B%BE.AB%2CCD%E4%BA%A4%E4%BA%8E%E7%82%B9O.E%2CF%E5%88%86%E5%88%AB%E6%98%AFDC%2CAB%E7%9A%84%E4%B8%AD%E7%82%B9.AD%3D6+CB%3D14.%E6%B1%82EF%E7%9A%84%E9%95%BF.%E5%A6%82%E5%9B%BE.AB%2CCD%E4%BA%A4%E4%BA%8E%E7%82%B9O.E%2CF%E5%88%86%E5%88%AB%E6%98%AFDC%2CAB%E7%9A%84%E4%B8%AD%E7%82%B9.AD%3D6+CB%3D14.%E6%B1%82EF%E7%9A%84%E9%95%BF.P.S%E8%BF%99%E5%B0%B1%E6%98%AF%E8%BF%99%E9%81%93%E9%A2%98%E7%9A%84%E5%9B%BE%E5%9B%BE%E5%93%88%7E%E4%B8%B4%E6%97%B6%E7%94%BB%E7%9A%84%2C%E4%B8%8D%E6%98%AF%E5%BE%88%E7%B2%BE%E7%A1%AE%E2%80%A6%E2%80%A6)
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