1.一个直角梯形,上底与下底的比为3:5,如果把上底增加7厘米,下底增加1厘米,就变成一个正方形.求梯形的面积是多少平方米?2.甲仓库有粮食100吨,乙仓库有粮食80吨,从甲仓库取出多少吨给乙仓库
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![1.一个直角梯形,上底与下底的比为3:5,如果把上底增加7厘米,下底增加1厘米,就变成一个正方形.求梯形的面积是多少平方米?2.甲仓库有粮食100吨,乙仓库有粮食80吨,从甲仓库取出多少吨给乙仓库](/uploads/image/z/13336689-57-9.jpg?t=1.%E4%B8%80%E4%B8%AA%E7%9B%B4%E8%A7%92%E6%A2%AF%E5%BD%A2%2C%E4%B8%8A%E5%BA%95%E4%B8%8E%E4%B8%8B%E5%BA%95%E7%9A%84%E6%AF%94%E4%B8%BA3%3A5%2C%E5%A6%82%E6%9E%9C%E6%8A%8A%E4%B8%8A%E5%BA%95%E5%A2%9E%E5%8A%A07%E5%8E%98%E7%B1%B3%2C%E4%B8%8B%E5%BA%95%E5%A2%9E%E5%8A%A01%E5%8E%98%E7%B1%B3%2C%E5%B0%B1%E5%8F%98%E6%88%90%E4%B8%80%E4%B8%AA%E6%AD%A3%E6%96%B9%E5%BD%A2.%E6%B1%82%E6%A2%AF%E5%BD%A2%E7%9A%84%E9%9D%A2%E7%A7%AF%E6%98%AF%E5%A4%9A%E5%B0%91%E5%B9%B3%E6%96%B9%E7%B1%B3%3F2.%E7%94%B2%E4%BB%93%E5%BA%93%E6%9C%89%E7%B2%AE%E9%A3%9F100%E5%90%A8%2C%E4%B9%99%E4%BB%93%E5%BA%93%E6%9C%89%E7%B2%AE%E9%A3%9F80%E5%90%A8%2C%E4%BB%8E%E7%94%B2%E4%BB%93%E5%BA%93%E5%8F%96%E5%87%BA%E5%A4%9A%E5%B0%91%E5%90%A8%E7%BB%99%E4%B9%99%E4%BB%93%E5%BA%93)
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