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Near the equator, a boat traveled 17 kilometers along a straight route from point $$A$$ to point $$B$$, which is 15 kilometers north and a certain distance east of point $$A$$. The boat then traveled 12 kilometers due east from point $$B$$ to point $$C$$. The boat then traveled along a straight route from point $$C$$ back to point $$A$$. What was the total distance, in kilometers, that the boat traveled from $$A$$ to $$B$$ to $$C$$ and then back to $$A$$ ?
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· 相关考点
4.3.7 勾股定理
4.3.7 勾股定理
以上解析由 考满分老师提供。
