Edexcel IGCSE Math A 4.1.C triangle angle properties
Practise triangle-angle questions by adding the known angles, using the 180-degree total and applying exterior-angle relationships.
- Syllabus
- First assessment 2018
- Course
- Math A 4MA1
- Level
- Higher
Exam points
- Use the angle sum of a triangle to calculate a missing interior angle.
- Apply the exterior angle property where an outside angle equals two opposite interior angles.
4.1.C The exterior angle of a triangle property and the angle question 1
The diagram shows a triangle.
Diagram NOT accurately drawn
Work out the value of x.
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