直角三角形与勾股定理 几何设P使凸四边形ABCD内一点,过P分别作AB,BC,CD,DA的垂线;垂足分别为E、F、G、H.已知AH=3,HD=4,DG=1,GC=5,CF=6,FB=4,且BE-AE=1.求四边形ABCD的面积请勿用初三内容.我查到周长了= =
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![直角三角形与勾股定理 几何设P使凸四边形ABCD内一点,过P分别作AB,BC,CD,DA的垂线;垂足分别为E、F、G、H.已知AH=3,HD=4,DG=1,GC=5,CF=6,FB=4,且BE-AE=1.求四边形ABCD的面积请勿用初三内容.我查到周长了= =](/uploads/image/z/2780941-13-1.jpg?t=%E7%9B%B4%E8%A7%92%E4%B8%89%E8%A7%92%E5%BD%A2%E4%B8%8E%E5%8B%BE%E8%82%A1%E5%AE%9A%E7%90%86+%E5%87%A0%E4%BD%95%E8%AE%BEP%E4%BD%BF%E5%87%B8%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E5%86%85%E4%B8%80%E7%82%B9%2C%E8%BF%87P%E5%88%86%E5%88%AB%E4%BD%9CAB%2CBC%2CCD%2CDA%E7%9A%84%E5%9E%82%E7%BA%BF%EF%BC%9B%E5%9E%82%E8%B6%B3%E5%88%86%E5%88%AB%E4%B8%BAE%E3%80%81F%E3%80%81G%E3%80%81H.%E5%B7%B2%E7%9F%A5AH%3D3%2CHD%3D4%2CDG%3D1%2CGC%3D5%2CCF%3D6%2CFB%3D4%2C%E4%B8%94BE-AE%3D1.%E6%B1%82%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E7%9A%84%E9%9D%A2%E7%A7%AF%E8%AF%B7%E5%8B%BF%E7%94%A8%E5%88%9D%E4%B8%89%E5%86%85%E5%AE%B9.%E6%88%91%E6%9F%A5%E5%88%B0%E5%91%A8%E9%95%BF%E4%BA%86%3D+%3D)
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