EST. 2024 · LONDON·MMXXVI SPECIFICATION
AQA·Edexcel·OCR|Foundation + Higher
← Glossary
Geometry

Sector

The "pizza slice" region of a circle bounded by two radii and an arc.

Definition

Sector area = (θ/360) × πr² for θ in degrees, where θ is the angle at the centre.

Used in these topics

Arc length and sector area

Practise GCSE Maths topics with instant examiner-style marking — every term in context.

Start free →