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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 Oxford AQA IGCSE Maths Area and Circumference of Circles for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) format. Since content from any part of the specification can appear on either paper, keep number and algebra fluency sharp throughout the course rather than leaving it until near the exam.

Lessons

FractionsEstimatingWriting and Simplifying RatioRatioPercentagesPercentage ChangeExchange RatesBest Buy QuestionsSubstitutionSolving EquationsArea and Circumference of CirclesArea of Compound ShapesFrequency Trees