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GCSE Mathematics · key term
The fixed point that is the same distance from every point on a circle.
Used by AQA, Edexcel and OCR
Specification G9 · Paper 1, Paper 2, Paper 3
Revise: Circle ComponentsA radius is a straight line segment from the centre to the circumference. Every radius of the same circle has the same length. A chord is a straight line segment joining any two points on the circumference; it need not pass through the centre.
Specification G9 · Paper 1, Paper 2, Paper 3
The point that is the same distance from every point on a circle.
Revise: Circle PropertiesA circle is made up of all the points in a plane that are a fixed distance from one point, called its centre. That fixed distance is the radius. If you put a compass point at the centre and set its opening to the radius, the pencil traces the circle as it turns.
Specification 7.01f, 8.05a · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
The fixed point from which every point on a circle is the same distance.
The point inside a circle that is the same distance from every point on its circumference.
A chord joins two points on the circumference; it is a diameter only if it passes through the centre.
A diameter must pass through the centre; a chord need not.
A diameter is a chord that passes through the centre; a chord need not pass through the centre.
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