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Circular measure

This sub-topic introduces radians as an angular unit, and teaches how to calculate arc length, sector area and segment area, with applications to common C…

How often is this tested?

Tested 67 times in the last 10 years — 9.4% of all P1 past-paper questions (67 of 692).

Most often tested as Sector area.

Based on OwlsPrep's analysis of official CIE 9709 past papers (2016–2025).

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