🔺 A Beautiful Proof That the Angles of a Triangle Sum to 180° | Geometry Explained
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🔺 A Beautiful Proof That the Angles of a Triangle Sum to 180° | Geometry Explained
Why do the three interior angles of every triangle always add up to 180°? In this video, we explore a clever geometric proof using symmetry, equal lengths, and perpendicular constructions. Watch as the relationships between α, β, and γ unfold to reveal one of the most fundamental results in Euclidean geometry: This elegant proof is perfect ...
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