Equation of a Circle

Skill Type Description Source
The geometry of a circle Video - 40 mins In this unit the equation of a circle is found from the co-ordinates of its centre and its radius. There are two different forms of the equation. The unit also covers some examples involving tangents to circles MathTutor
Equation of circle 1 MiniClip Equation of circle 1 Leeds University
Equation of circle 2 MiniClip Equation of circle 2 Leeds University
Equation of circle 3 MiniClip Equation of circle 3 Leeds University
Identifying circle equations MiniClip Identifying circle equations Leeds University
Tangent to a circle 1 MiniClip Tangent to a circle 1 Leeds University

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