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Interior Angle of Polygon Calculator

Find the interior angle sum of a regular polygon. Free online calculator with instant results — no login needed.

Each Angle (regular)
Interior Angle Sum

What is the Interior Angle of Polygon Calculator?

Find the interior angle sum of a regular polygon. Free online calculator with instant results — no login needed.

Enter your values above and the result updates instantly. For a regular polygon all angles are equal.

Formula

Sum = (n − 2) × 180°

Example

Interior Angle Sum
Each Angle (regular)

FAQs

Triangle?

3 sides → 180°.

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