Learn how to measure interior and exterior angles in polygons with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

In this Maths article, learn how to use a formula to find out the internal angles within a polygon.

The simplest polygon is a triangle (a three-sided shape). Polygons of all types can be regular or irregular. A regular polygon has sides of equal length, and all its interior angles are of equal ...

There are lots of different types of polygon. Find out about quadrilaterals, triangles, polygons and circles in this KS2 Maths guide from BBC Bitesize.