已知,如图正方形EFOG绕与之边长相等的正方形ABCD的中心O旋转任意角度,若AB=2,求图中阴影部分的面积. 图示:http://hi.baidu.com/56093465/album/item/bc371dfbe9a3b236a8d31137.html
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![已知,如图正方形EFOG绕与之边长相等的正方形ABCD的中心O旋转任意角度,若AB=2,求图中阴影部分的面积. 图示:http://hi.baidu.com/56093465/album/item/bc371dfbe9a3b236a8d31137.html](/uploads/image/z/6940122-42-2.jpg?t=%E5%B7%B2%E7%9F%A5%2C%E5%A6%82%E5%9B%BE%E6%AD%A3%E6%96%B9%E5%BD%A2EFOG%E7%BB%95%E4%B8%8E%E4%B9%8B%E8%BE%B9%E9%95%BF%E7%9B%B8%E7%AD%89%E7%9A%84%E6%AD%A3%E6%96%B9%E5%BD%A2ABCD%E7%9A%84%E4%B8%AD%E5%BF%83O%E6%97%8B%E8%BD%AC%E4%BB%BB%E6%84%8F%E8%A7%92%E5%BA%A6%2C%E8%8B%A5AB%3D2%2C%E6%B1%82%E5%9B%BE%E4%B8%AD%E9%98%B4%E5%BD%B1%E9%83%A8%E5%88%86%E7%9A%84%E9%9D%A2%E7%A7%AF.+%E5%9B%BE%E7%A4%BA%EF%BC%9Ahttp%3A%2F%2Fhi.baidu.com%2F56093465%2Falbum%2Fitem%2Fbc371dfbe9a3b236a8d31137.html)
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