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题目来源1 : The Princeton Review
正确率：15%
难度：5
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In the figure above, the circumference of the circle is equal to 8π, and arc PQR is equal to $$\frac{1}{4}$$ of the total circumference. What is the approx?i?mate area of the shaded region? (Round your answer to the nearest whole number.)
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以上解析由 考满分老师提供。
