GMAT 考满分题库

Magoosh - 数学PS - 371
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In the diagram above, JKL is an equilateral triangle. Point M is the midpoint of segment JL, and M is the center of a circle that passes through points J and L. The shaded regions in the diagram indicate all the regions inside the circle that are outside the triangle. What fraction of the total area of the circle is outside the triangle?
  • A$$\frac{2}{\pi}$$
  • B$${\pi-\sqrt{3}}\over{\pi}$$
  • C$${4-\sqrt{3}}\over{\pi}$$
  • D$$\frac{2}{3}-{\sqrt{3}\over{4\pi}}$$
  • E$$\frac{5}{6}-{\sqrt{3}\over{2\pi}}$$
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正确答案: E

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