GMAT 考满分题库

- 数学PS -
The big circle is concentric with the small circle whose radius is r. An equilateral triangle is inscribed on the big circle and circumscribed on the small circle. What is the area of the shadow?

  • A$$\frac{(π-\sqrt{3})*r^{2}}{3}$$
  • B$$\frac{(2π-\sqrt{3})*r^{2}}{3}$$
  • C$$\frac{(4π-\sqrt{3})*r^{2}}{3}$$
  • D$$\frac{(4π-3\sqrt{3})*r^{2}}{3}$$
  • E$$\frac{(2π-3\sqrt{3})*r^{2}}{3}$$
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正确答案: D

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