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2017 AMC 10A Question 22

AMC10 · 2017 AMC 10A

Question 22

Sides $\overline{AB}$ and $\overline{AC}$ of equilateral triangle $ABC$ are tangent to a circle at points $B$ and $C$ respectively. What fraction of the area of $\triangle ABC$ lies outside the circle?
  1. $\dfrac{4\sqrt{3}\pi}{27}-\dfrac{1}{3}$
  2. $\dfrac{\sqrt{3}}{2}-\dfrac{\pi}{8}$
  3. $\dfrac{1}{2}$
  4. $\sqrt{3}-\dfrac{2\sqrt{3}\pi}{9}$
  5. $\dfrac{4}{3}-\dfrac{4\sqrt{3}\pi}{27}$