Key Concepts in Angles
- Angles on a straight line and around a point
- Angles in triangles and quadrilaterals
- Interior and exterior angles of polygons
- Angles in parallel lines (alternate, co-interior, corresponding)
- Bearing problems
Exam Tips for Angles
- 💡Angles on a straight line = 180°
- 💡Angles around a point = 360°
- 💡Interior angle sum of n-sided polygon = (n−2) × 180°
Exam Board Coverage
Angles appears on all major GCSE Maths exam boards at both Foundation and Higher tier.
AQA
Edexcel
OCR
Frequently Asked Questions
What are alternate angles?
Alternate angles are equal angles formed on opposite sides of a transversal crossing parallel lines — they form a "Z shape".
How do I find the interior angle of a regular polygon?
Interior angle = (n−2) × 180° ÷ n, where n is the number of sides.