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2020 PUMaC Geometry A2 / B4

Source:

December 31, 2021
geometry

Problem Statement

Hexagon ABCDEFABCDEF has an inscribed circle Ω\Omega that is tangent to each of its sides. If AB=12AB = 12, FAB=120o\angle FAB = 120^o, and ABC=150o\angle ABC = 150^o, and if the radius of Ω\Omega can be written as m+nm +\sqrt{n} for positive integers m,nm, n, find m+nm + n.