GlossariesGCSE GlossariesGCSE Maths GlossaryA chord

A chord - GCSE Maths Definition

Reviewed by: Dan Finlay

Last updated

In GCSE Maths, a chord is defined as a straight line segment whose endpoints lie on the circumference of a circle. It is an important concept in the study of circle geometry. A chord effectively divides the circle into two segments, known as arcs, and the longest possible chord in a circle is the diameter, which passes through the centre. Understanding chords is essential for solving problems related to angles, sectors, and segments in circles.

Examiner-written GCSE Maths revision resources that improve your grades 2x

  • Written by expert teachers and examiners
  • Aligned to exam specifications
  • Everything you need to know, and nothing you don’t
GCSE Maths revision resources

Share this article

Dan Finlay

Reviewer: Dan Finlay

Expertise: Maths Lead

Dan graduated from the University of Oxford with a First class degree in mathematics. As well as teaching maths for over 8 years, Dan has marked a range of exams for Edexcel, tutored students and taught A Level Accounting. Dan has a keen interest in statistics and probability and their real-life applications.

The examiner written revision resources that improve your grades 2x.

Join now