Learn more about how angles in an 𝒏-sided polygon add to 180° × (𝒏 – 2) with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

By increasing the number of sides of the polygons, the perimeters become closer in length to the circumference of the circle. Approximating Pi Infinite Secrets homepage ...

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