如图,已知△ABC中,∠ACB=90°,ACDE和BCFG都是正方形,过D,E,F,G各点作直线AB的垂线,垂足分别为D1,E1,F1,G1求证(1)AE1=BG1 (2) EE1+GG1=AB (3) DD1+FF1=E1G1
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![如图,已知△ABC中,∠ACB=90°,ACDE和BCFG都是正方形,过D,E,F,G各点作直线AB的垂线,垂足分别为D1,E1,F1,G1求证(1)AE1=BG1 (2) EE1+GG1=AB (3) DD1+FF1=E1G1](/uploads/image/z/13896157-13-7.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%B7%B2%E7%9F%A5%E2%96%B3ABC%E4%B8%AD%2C%E2%88%A0ACB%3D90%C2%B0%2CACDE%E5%92%8CBCFG%E9%83%BD%E6%98%AF%E6%AD%A3%E6%96%B9%E5%BD%A2%2C%E8%BF%87D%2CE%2CF%2CG%E5%90%84%E7%82%B9%E4%BD%9C%E7%9B%B4%E7%BA%BFAB%E7%9A%84%E5%9E%82%E7%BA%BF%2C%E5%9E%82%E8%B6%B3%E5%88%86%E5%88%AB%E4%B8%BAD1%2CE1%2CF1%2CG1%E6%B1%82%E8%AF%81%EF%BC%881%EF%BC%89AE1%3DBG1++++++++%282%29+EE1%2BGG1%3DAB+++++++%283%29+DD1%2BFF1%3DE1G1)
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