🚨🚨OBMEP What is the ratio between the areas highlighted in blue and pink?
OBMEP In the figure, ABC is an equilateral triangle and the smaller circle is tangent to two sides of the triangle and to the larger circle, as indicated. The pink region is the one inside the larger circle and outside the smaller circle. What is the ratio between the areas highlighted in blue and pink?
A 4/3
B 4/5
C 4/7
D 2/7
E 2/9
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