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[几何] 平行四边形&面积最值

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hbghlyj posted 2019-8-1 21:04 |Read mode

给定平行四边形ABCD和边AB上一点E,平行四边形BEFG内接于平行四边形AHIJ,D在FG上,点H,J在射线AC,AB上,求作点F使四边形CFGJ面积最大

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2025-7-23 09:59 GMT+8

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