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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Trapezium Rule

Trapezium Rule

Practise using the trapezium rule to find an approximate value for the area under a curve. So far this activity has been accessed 33 times and 3 Transum Trophies have been awarded for completing it.

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