已知矩形ABCD中,点E是BC上的一动点,过点E作EF⊥BD于点F,EG⊥AC于点G,CH⊥BD于点H1.证明;CH=EF+EG2.若点E在BC的延长线上,如图2,过点E作EF⊥BD于点F,EG⊥AC的延长线于点G,CH⊥BD于点H,则EF,EG,CH三者之间具
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![已知矩形ABCD中,点E是BC上的一动点,过点E作EF⊥BD于点F,EG⊥AC于点G,CH⊥BD于点H1.证明;CH=EF+EG2.若点E在BC的延长线上,如图2,过点E作EF⊥BD于点F,EG⊥AC的延长线于点G,CH⊥BD于点H,则EF,EG,CH三者之间具](/uploads/image/z/13307451-51-1.jpg?t=%E5%B7%B2%E7%9F%A5%E7%9F%A9%E5%BD%A2ABCD%E4%B8%AD%2C%E7%82%B9E%E6%98%AFBC%E4%B8%8A%E7%9A%84%E4%B8%80%E5%8A%A8%E7%82%B9%2C%E8%BF%87%E7%82%B9E%E4%BD%9CEF%E2%8A%A5BD%E4%BA%8E%E7%82%B9F%2CEG%E2%8A%A5AC%E4%BA%8E%E7%82%B9G%2CCH%E2%8A%A5BD%E4%BA%8E%E7%82%B9H1.%E8%AF%81%E6%98%8E%EF%BC%9BCH%3DEF%2BEG2.%E8%8B%A5%E7%82%B9E%E5%9C%A8BC%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%2C%E5%A6%82%E5%9B%BE2%2C%E8%BF%87%E7%82%B9E%E4%BD%9CEF%E2%8A%A5BD%E4%BA%8E%E7%82%B9F%2CEG%E2%8A%A5AC%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%8E%E7%82%B9G%2CCH%E2%8A%A5BD%E4%BA%8E%E7%82%B9H%2C%E5%88%99EF%2CEG%2CCH%E4%B8%89%E8%80%85%E4%B9%8B%E9%97%B4%E5%85%B7)
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