Polygon Angles

Exterior Angles of Regular Polygons

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Interior Angles of Regular Polygons

Interior Angles of Irregular Polygons

The sum of the interior angles of an n-sided polygon is 180 × n - 360 degrees.

⏯ Regular Exterior ⏯ Regular Interior ⏯ Irregular Interior

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Changing The Subject

Changing The Subject

Rearrange a formula in order to find a new subject in this self marking exercise. So far this activity has been accessed 24923 times and 13621 people have earned a Transum Trophy for completing it.

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