Intellectual Olympiad in Geometry - 2026 ongoing

Subject: Geometry
Level: IX
Category: student
Quiz questions: in English
Example question: In a cyclic hexagon, the sums of three pairs of opposite angles are 180°. If five of its interior angles are 112°, 98°, 124°, 86°, and 105°, what is the sixth angle? 65°, 72°, 81°, 75°