初二几何填空题目四道,在线等————————①已知平行四边形ABCD中,三边AB、BC、CD的长度分别是(x+2)cm,(x-5)cm,12cm,则DA的长为___cm?②M是△ABC的边AB的中点,连接CM延长到D,使MD=CM,则AD与BC的位
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![初二几何填空题目四道,在线等————————①已知平行四边形ABCD中,三边AB、BC、CD的长度分别是(x+2)cm,(x-5)cm,12cm,则DA的长为___cm?②M是△ABC的边AB的中点,连接CM延长到D,使MD=CM,则AD与BC的位](/uploads/image/z/5928648-24-8.jpg?t=%E5%88%9D%E4%BA%8C%E5%87%A0%E4%BD%95%E5%A1%AB%E7%A9%BA%E9%A2%98%E7%9B%AE%E5%9B%9B%E9%81%93%2C%E5%9C%A8%E7%BA%BF%E7%AD%89%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%91%A0%E5%B7%B2%E7%9F%A5%E5%B9%B3%E8%A1%8C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E4%B8%AD%2C%E4%B8%89%E8%BE%B9AB%E3%80%81BC%E3%80%81CD%E7%9A%84%E9%95%BF%E5%BA%A6%E5%88%86%E5%88%AB%E6%98%AF%28x%2B2%29cm%2C%28x-5%29cm%2C12cm%2C%E5%88%99DA%E7%9A%84%E9%95%BF%E4%B8%BA___cm%3F%E2%91%A1M%E6%98%AF%E2%96%B3ABC%E7%9A%84%E8%BE%B9AB%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E8%BF%9E%E6%8E%A5CM%E5%BB%B6%E9%95%BF%E5%88%B0D%2C%E4%BD%BFMD%3DCM%2C%E5%88%99AD%E4%B8%8EBC%E7%9A%84%E4%BD%8D)
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