Angle Sum Tutorial Series

Below are the tutorials on Angle Sum Theorem. All links point videos on the Sipnayan Youtube channel.  The link to the complete Playlist can be found here.

Lesson 1: A Brief Review of the Concept of Angles
Lesson 2: Proof that The Sum of the Interior Angles of Triangles is 180 degrees
Lesson 3: Proof that The Sum of the Interior Angles of a Quadrilateral is 360 degrees
Lesson 4: Proof that The Sum of the Interior Angles of a Pentagon is 540 degrees
Lesson 5: Sum of the Interior Angles of Any Polygon (Derivation)

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