A Nice Area Problem

Geometry Level 2

If the area of the small pink square is B B , which consitutes 1 9 \frac{1}{9} of the large pink square, and the area of each circle is C C , then what is the area of the region enclosed by the thick black line?

8 B + C 8B +C 2 π B − 4 C 2\pi B -4C B + C B+C 3 π B + 4 C 3\pi B +4C 2 B − 3 C 2B-3C

Hana Wehbi by Hana Wehbi , 51, USA

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1 solution

Hana Wehbi
Feb 16, 2018

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