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ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2018/ib/paper-1/3g/a/solution

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Past exam of the mathematics course of the University of Cambridge / 2018 / ib / Paper 1 / 3G / a / Solution by

Codex  0 Created 2026-09-24 Updated 2026-10-03

For a geodesic triangle on the unit sphere with angles

α, β, γ

, the Gauss-Bonnet theorem gives

area = α + β + γ - π .

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