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Home
Mathematics
Key terms
Standard form of a circle equation

Level 2 Certificate Mathematics · key term

Standard form of a circle equation

Definition

The equation $(x-a)^2+(y-b)^2=r^2$ , which describes a circle with centre and radius .

How each exam board covers it

AQA Level 2 Certificate Further Mathematics · 8365

Specification 3.8 · Paper 1, Paper 2

Revise: General Circle Equation

AQA Further Mathematics past papers

Related key terms

Centre
Circle
Radius

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Standard form of a circle equation — AQA Level 2 Certificate Further Maths Definition

b

)2

=

r2

(a,b)

r

Used by AQA