What is the interior angle sum theorem for polygons

The video tutorial explores the sum of angles in polygons, starting with basic shapes like triangles and quadrilaterals, and moving to more complex shapes like pentagons and hexagons. The teacher guides students through identifying patterns in the number of sides and internal triangles, leading to the derivation of a formula for calculating the sum of angles in any polygon. The formula is explained as (n-2) * 180, where n is the number of sides. The tutorial concludes with a practical example using a 15-sided polygon.

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