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Parts of a circle

Parts of a circle

Labelled circle showing centre, radius, diameter, circumference, tangent, and a sector

A circle is a shape where every point on the edge is the same distance from the centre. Before using formulas, make sure you can identify the centre, radius, diameter, circumference, tangent, and sector.

Area and Circumference of Circles Lesson

  1. IGCSE
  2. /Maths
  3. /Area and Circumference of Circles

Step-by-step lessons covering Edexcel IGCSE Maths Area and Circumference of Circles for IGCSE Maths. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build confidence with the shared Foundation-tier content first, since roughly 40% of Higher-tier marks are targeted at the grades 4–5 boundary that both tiers have in common.

Lessons