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例1有大、小两个正方形,大正方形的一个顶点和小正方形的中心重合.转动大正方形,重叠部分的形状会不断变化.问在转动过程中,重叠部分的面积会变化吗?
Example 1 has two squares, big and small. One vertex of the big square coincides with the center of the small square. Turning the large square changes the shape of the overlapping part. Is the area of the overlapping part changing during the rotation process?