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谈谈１９９６年全国初中数学朕赛二试的第二题４３００５０武汉市教研室裴光亚１９９６年全国初中数学联赛二试的第二题如下：设凸四边形ＡＢＣＤ的对角线ＡＣ、ＢＤ的交点为Ｍ，过Ｍ作ＡＤ的平行线分别交ＡＢ、ＣＤ于点Ｅ、Ｆ，交ＢＣ的延长线于点Ｏ，Ｐ是以Ｏ为圆心ＯＭ...
Talk about the second question of the second national junior high school mathematics competition test in 1996 430050 Wuhan Teaching Research Division Dian Guangya The second question of the 1996 national junior high school mathematics league second test is as follows: Let the intersection point of the diagonal AC and BD of the convex quadrangle ABCD be M, The parallel lines that cross M for AD are transferred to AB and CD respectively at points E and F. The extension line for BC is at point O. P is based on O as the center of OM...