如图,平行四边形ABCD的对角线AC,BD相交于点O,E ,F分别是OA,OC的中点,求证BE=D如图,平行四边形ABCD的对角线AC,BD相交于点O,E ,F分别是OA,OC的中点,求证BE=DF.
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![如图,平行四边形ABCD的对角线AC,BD相交于点O,E ,F分别是OA,OC的中点,求证BE=D如图,平行四边形ABCD的对角线AC,BD相交于点O,E ,F分别是OA,OC的中点,求证BE=DF.](/uploads/image/z/8654590-46-0.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E7%9A%84%E5%AF%B9%E8%A7%92%E7%BA%BFAC%2CBD%E7%9B%B8%E4%BA%A4%E4%BA%8E%E7%82%B9O%2CE+%2CF%E5%88%86%E5%88%AB%E6%98%AFOA%2COC%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E6%B1%82%E8%AF%81BE%3DD%E5%A6%82%E5%9B%BE%2C%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E7%9A%84%E5%AF%B9%E8%A7%92%E7%BA%BFAC%2CBD%E7%9B%B8%E4%BA%A4%E4%BA%8E%E7%82%B9O%2CE+%2CF%E5%88%86%E5%88%AB%E6%98%AFOA%2COC%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E6%B1%82%E8%AF%81BE%3DDF.)
如图,平行四边形ABCD的对角线AC,BD相交于点O,E ,F分别是OA,OC的中点,求证BE=D如图,平行四边形ABCD的对角线AC,BD相交于点O,E ,F分别是OA,OC的中点,求证BE=DF.
如图,平行四边形ABCD的对角线AC,BD相交于点O,E ,F分别是OA,OC的中点,求证BE=D
如图,平行四边形ABCD的对角线AC,BD相交于点O,E ,F分别是OA,OC的中点,求证BE=DF.
如图,平行四边形ABCD的对角线AC,BD相交于点O,E ,F分别是OA,OC的中点,求证BE=D如图,平行四边形ABCD的对角线AC,BD相交于点O,E ,F分别是OA,OC的中点,求证BE=DF.
OA等于OC.OE等于OF.OD等于OB.对顶角相等