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PROBLEM 247 Start with a circle, C, of radius 1/2 and center b, inside of which you have drawn two circles, L and R, of radius 1/4, so all three circles are mutually tangent. See the figure on the left. Let a be the center of L and b the point of intersection of L and R. Draw a circle, T, with center t which is mutually tangent to L, R and C, and a circle with center s which is mutually tangent to T, L, and C. What is the area of the quadrilateral abst? You are visitor
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