GCSE · Angles & polygons
Interior & exterior angles of polygonsExam-style questions
Why the exterior angles of any polygon add up to 360°, where (n − 2) × 180° comes from, how regular polygons follow instantly, and the reliable route from a given interior angle back to the number of sides.
20 questions · GCSE (Higher) level · mark scheme and worked solution on each · no sign-up to try
- 1Work out the sum of the interior angles of a pentagon.Level 1 · 2 marksTry it