Finding the sum and measure of an interior angle for a regular pentagon

The video tutorial explains how to calculate the sum of interior angles in a pentagon, differentiating between regular and irregular pentagons. It introduces the formula S = (n-2) * 180 degrees for any polygon and applies it to a pentagon with five sides, resulting in a sum of 540 degrees. The tutorial further explains how to find the measure of one interior angle in a regular pentagon by dividing the sum by the number of sides, resulting in 108 degrees per angle.

Explain the difference between a regular and an irregular Pentagon.

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What formula is used to calculate the sum of the interior angles of any polygon?

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