Polygon Angle Explorer

Exterior Angles of Regular Polygons

insect

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 ⏯ Polygon Profiles

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Area and Perimeter

Area and Perimeter

Name the shapes then find formulas to calculate the area and perimeters from the given lengths. So far this activity has been accessed 39417 times and 5620 Transum Trophies have been awarded for completing it.

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