如图,在菱形ABCD中,角A=120度,在其边上依次取E,F,G,H,使AE=CF=CG=AH(1)若菱形边长为1,设AE=X,则四边形EFGH的面积为y,求出y与X之间的函数解析式(2)当X为何值时,四边形EFGH为正方形
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![如图,在菱形ABCD中,角A=120度,在其边上依次取E,F,G,H,使AE=CF=CG=AH(1)若菱形边长为1,设AE=X,则四边形EFGH的面积为y,求出y与X之间的函数解析式(2)当X为何值时,四边形EFGH为正方形](/uploads/image/z/3803334-6-4.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E8%8F%B1%E5%BD%A2ABCD%E4%B8%AD%2C%E8%A7%92A%3D120%E5%BA%A6%2C%E5%9C%A8%E5%85%B6%E8%BE%B9%E4%B8%8A%E4%BE%9D%E6%AC%A1%E5%8F%96E%2CF%2CG%2CH%2C%E4%BD%BFAE%3DCF%3DCG%3DAH%EF%BC%881%EF%BC%89%E8%8B%A5%E8%8F%B1%E5%BD%A2%E8%BE%B9%E9%95%BF%E4%B8%BA1%2C%E8%AE%BEAE%3DX%2C%E5%88%99%E5%9B%9B%E8%BE%B9%E5%BD%A2EFGH%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BAy%2C%E6%B1%82%E5%87%BAy%E4%B8%8EX%E4%B9%8B%E9%97%B4%E7%9A%84%E5%87%BD%E6%95%B0%E8%A7%A3%E6%9E%90%E5%BC%8F%EF%BC%882%EF%BC%89%E5%BD%93X%E4%B8%BA%E4%BD%95%E5%80%BC%E6%97%B6%2C%E5%9B%9B%E8%BE%B9%E5%BD%A2EFGH%E4%B8%BA%E6%AD%A3%E6%96%B9%E5%BD%A2)
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