在梯形ABCD中,AD‖BC,AB⊥BC,点M在边BC上,且∩MDB=∩ADB,BD²=AD×BC 1求证BM=CM,(2)作BE⊥DM垂足为E,并交CD于点F,求证:2AD×DM=DF×DC 第一题时M做MH⊥BD,MG⊥DC可以吗第一题时M做MH⊥BD,MG⊥DC证两三角形
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![在梯形ABCD中,AD‖BC,AB⊥BC,点M在边BC上,且∩MDB=∩ADB,BD²=AD×BC 1求证BM=CM,(2)作BE⊥DM垂足为E,并交CD于点F,求证:2AD×DM=DF×DC 第一题时M做MH⊥BD,MG⊥DC可以吗第一题时M做MH⊥BD,MG⊥DC证两三角形](/uploads/image/z/10155751-7-1.jpg?t=%E5%9C%A8%E6%A2%AF%E5%BD%A2ABCD%E4%B8%AD%2CAD%E2%80%96BC%2CAB%E2%8A%A5BC%2C%E7%82%B9M%E5%9C%A8%E8%BE%B9BC%E4%B8%8A%2C%E4%B8%94%E2%88%A9MDB%3D%E2%88%A9ADB%2CBD%26%23178%3B%3DAD%C3%97BC+1%E6%B1%82%E8%AF%81BM%3DCM%2C%282%29%E4%BD%9CBE%E2%8A%A5DM%E5%9E%82%E8%B6%B3%E4%B8%BAE%2C%E5%B9%B6%E4%BA%A4CD%E4%BA%8E%E7%82%B9F%2C%E6%B1%82%E8%AF%81%EF%BC%9A2AD%C3%97DM%3DDF%C3%97DC+++%E7%AC%AC%E4%B8%80%E9%A2%98%E6%97%B6M%E5%81%9AMH%E2%8A%A5BD%2CMG%E2%8A%A5DC%E5%8F%AF%E4%BB%A5%E5%90%97%E7%AC%AC%E4%B8%80%E9%A2%98%E6%97%B6M%E5%81%9AMH%E2%8A%A5BD%EF%BC%8CMG%E2%8A%A5DC%E8%AF%81%E4%B8%A4%E4%B8%89%E8%A7%92%E5%BD%A2)
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