Diameter (English)
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Definition (keystage 2)
A line joining two points on the circumference of a circle, which passes through the centre of the circle, dividing the circle in half.
Definition (keystage 3)
The distance from one side of a shape to another, through its centre.
The length of a line which cuts a shape in half.
We usually talk about the diameter of a circle, which is any line going through the circle's centre.
The length of a line which cuts a shape in half.
We usually talk about the diameter of a circle, which is any line going through the circle's centre.
Relations
- broader:
- (en) Chord or secant line
- (en) Lines in a circle
- narrower:
- (en) Conjugate diameters
- (en) Diameter of a set
- references:
- (en) Circle
- (en) Semicircle
- referenced:
- (en) Concyclic
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