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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Gradient of a Line

Gradient of a Line

Practise the skill of finding the gradients of straight lines by counting squares and dividing rise by run. So far this activity has been accessed 13258 times and 6730 Transum Trophies have been awarded for completing it.

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