Angles in Triangles – GCSE Maths Worksheets
Description:
Explore triangle angle rules through this structured worksheet pack. Learners calculate missing angles in various triangle types and apply the exterior angle property.
This pack includes three differentiated tasks with clear worked examples in the answer sheets.
Included Levels:- Red: Identify angle sums in equilateral and isosceles triangles
- Amber: Use algebraic expressions to solve for missing angles
- Green: Combine triangle and exterior angle facts to solve exam-style problems
- Know that interior angles of a triangle total 180°
- Apply exterior angle = sum of opposite interior angles
- Solve problems with mixed triangle types
- GCSE Maths Foundation Tier
- Edexcel, AQA, OCR syllabus
- Suitable for use in class or for exam preparation
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