Polygons can look quite different, but have the same name. For example, look at these two shapes and count the sides on each. Can you see both shapes have 6 sides, so both shapes are hexagons.

Learn about and revise angles, lines and multi-sided shapes and their properties with this BBC Bitesize GCSE Maths Eduqas study guide.

The polygon has 30 sides. Question. Calculate the size of the exterior and interior angle in a regular pentagon. Show more Show less. Method one. The sum of exterior angles is 360 ...

Learn about and revise angles, lines and multi-sided shapes and their properties with GCSE Bitesize OCR Maths. ... exterior angle of a polygon = 360 ÷ number of sides. Next page. Symmetry.