Interior and Exterior Angles GCSE Maths
Interior and exterior angles are key GCSE Maths geometry topics used in polygon problem solving.
Important Geometry Skills
- Finding interior angle sums
- Using exterior angle rules
- Working with regular polygons
- Checking calculations carefully
Exam tip: Sketch diagrams clearly before calculating unknown angles.
Common mistake: Confusing interior angle sums with exterior angle totals.
Video explanation
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