已知平行四边形ABCD的周长是40,高AE=6,高AF=9,求AB、CD的长;平行四边形ABCD的面积已知平行四边形ABCD的周长是40,高AE=6,高AF=9.求(1)AB、CD的长;(2)平行四边形ABCD的面积.速度哈、明天要交的!是
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![已知平行四边形ABCD的周长是40,高AE=6,高AF=9,求AB、CD的长;平行四边形ABCD的面积已知平行四边形ABCD的周长是40,高AE=6,高AF=9.求(1)AB、CD的长;(2)平行四边形ABCD的面积.速度哈、明天要交的!是](/uploads/image/z/2358654-6-4.jpg?t=%E5%B7%B2%E7%9F%A5%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E7%9A%84%E5%91%A8%E9%95%BF%E6%98%AF40%2C%E9%AB%98AE%3D6%2C%E9%AB%98AF%3D9%2C%E6%B1%82AB%E3%80%81CD%E7%9A%84%E9%95%BF%3B%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E7%9A%84%E9%9D%A2%E7%A7%AF%E5%B7%B2%E7%9F%A5%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E7%9A%84%E5%91%A8%E9%95%BF%E6%98%AF40%2C%E9%AB%98AE%3D6%2C%E9%AB%98AF%3D9.%E6%B1%82%EF%BC%881%EF%BC%89AB%E3%80%81CD%E7%9A%84%E9%95%BF%3B%EF%BC%882%EF%BC%89%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E7%9A%84%E9%9D%A2%E7%A7%AF.%E9%80%9F%E5%BA%A6%E5%93%88%E3%80%81%E6%98%8E%E5%A4%A9%E8%A6%81%E4%BA%A4%E7%9A%84%21%E6%98%AF)
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