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Angles of a Pentagon

A regular pentagon has 5 equal interior angles. Here you will find their measurements and the formula for the total sum of interior angles.

Interior and exterior angles of a Pentagon

Angle Summary


Formula for the Sum of Interior Angles

Sum of All Interior Angles

The general formula for any polygon with n sides is:

(n − 2) × 180°

nnumber of sides of the polygon

For a pentagon: (5 − 2) × 180° = 3 × 180° = 540°

More About the Pentagon

Click on any element to learn more.

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