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Cambridge IGCSE Additional Mathematics

9Circular measure

Circular measure in Cambridge IGCSE Additional Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Topic39 practice questions2 lessons

In this topic

Lessons

  • Arcs, sectors and segments in compound shapes

    45 min

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  • Radian measure, arc length and sector area

    35 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Circular measure: sample question

1 mark

A chord subtends an angle of 1 radian at the centre of a circle of radius 8 cm. Find the length of the chord, correct to 3 significant figures.

Answer in cm.

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