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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Example or Non-Example?

Example or Non-Example?

Drag the cards to show whether they are examples or non-examples of triangles, polygons, expressions, like terms, bearings etc. So far this activity has been accessed 383 times and 13 people have earned a Transum Trophy for completing it.

The animations above were made for the this video:
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