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In the figure above, $$\frac{x}{y}=\frac{2}{3}$$. What is the least number of degrees through which segment PR would have to be rotated in the direction indicated so that $$\frac{x}{y}=\frac{3}{2}$$
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· 相关考点
4.1.3 补角与余角
4.1.3 补角与余角
以上解析由 考满分老师提供。