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5

Part of 2020 ISI Entrance Examination

Problems(1)

ISI 2020 : Problem 5

Source: B.Stat & B.Math Entrance Exam 2020

9/20/2020
Prove that the largest pentagon (in terms of area) that can be inscribed in a circle of radius 11 is regular (i.e., has equal sides).
isi2020geometry