一道有关勾股定理的初二数学题如图,A、B两个小村子在河流C、D的同侧,分别到河的距离为AC 10 km,BD 30 km,且CD为30km,现在要在河边建一自来水场,分别向A、B两村供水,铺设水管的费用为每千米3万
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![一道有关勾股定理的初二数学题如图,A、B两个小村子在河流C、D的同侧,分别到河的距离为AC 10 km,BD 30 km,且CD为30km,现在要在河边建一自来水场,分别向A、B两村供水,铺设水管的费用为每千米3万](/uploads/image/z/1712097-9-7.jpg?t=%E4%B8%80%E9%81%93%E6%9C%89%E5%85%B3%E5%8B%BE%E8%82%A1%E5%AE%9A%E7%90%86%E7%9A%84%E5%88%9D%E4%BA%8C%E6%95%B0%E5%AD%A6%E9%A2%98%E5%A6%82%E5%9B%BE%2CA%E3%80%81B%E4%B8%A4%E4%B8%AA%E5%B0%8F%E6%9D%91%E5%AD%90%E5%9C%A8%E6%B2%B3%E6%B5%81C%E3%80%81D%E7%9A%84%E5%90%8C%E4%BE%A7%2C%E5%88%86%E5%88%AB%E5%88%B0%E6%B2%B3%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%BAAC+10+km%2CBD+30+km%2C%E4%B8%94CD%E4%B8%BA30km%2C%E7%8E%B0%E5%9C%A8%E8%A6%81%E5%9C%A8%E6%B2%B3%E8%BE%B9%E5%BB%BA%E4%B8%80%E8%87%AA%E6%9D%A5%E6%B0%B4%E5%9C%BA%2C%E5%88%86%E5%88%AB%E5%90%91A%E3%80%81B%E4%B8%A4%E6%9D%91%E4%BE%9B%E6%B0%B4%2C%E9%93%BA%E8%AE%BE%E6%B0%B4%E7%AE%A1%E7%9A%84%E8%B4%B9%E7%94%A8%E4%B8%BA%E6%AF%8F%E5%8D%83%E7%B1%B33%E4%B8%87)
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