Cambridge IGCSE Mathematics
4.6Angles
Angles in Cambridge IGCSE Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic42 practice questions2 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 4.6.1Calculate unknown angles using angles at a point, angles on a straight line, vertically opposite angles and the angle sums of triangles and quadrilaterals, giving reasons.
- 4.6.2Calculate unknown angles formed with parallel lines using corresponding, alternate and co-interior angles, giving geometric reasons.
- 4.6.3Use the interior and exterior angle properties of regular polygons (Extended: also irregular polygons).
Lessons
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Angle properties
25 min
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Polygons
20 min
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Sample question
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