The pattern shows 17 congruent circles in an irregular ring such that each circle is tangent to two other circles.
A polygon is created by joining the centers of the circles as shown in the diagram.
Let A1 = the area of all circular sectors inside the polygon (i.e. the blue sectors)
Let A2 = the area of all the circular sectors outside the polygon (i.e. the lavender sectors).
Find A2 - A1.
(Answer on Friday)
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