# Equation of a Circle Centre at the Origin

> A circle is one of the most fundamental shapes in geometry. In Analytical Geometry, you describe circles using algebraic equations. When the centre of a circle is at the origin (the point (0, 0))…

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## Full notes

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## More in Analytical Geometry

- [The Ellipse](https://www.hlayiso.com/grade-12/technical-mathematics/notes/analytical-geometry/the-ellipse) — Next section
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## Frequently asked questions

### What will I learn in "Equation of a Circle Centre at the Origin"?

This section covers Equation of a Circle Centre at the Origin as part of Analytical Geometry in Grade 12 Technical Mathematics. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

### Is this section aligned with the CAPS curriculum?

Yes. All notes on Hlayiso, including "Equation of a Circle Centre at the Origin", are written against the official CAPS curriculum and ATP for Grade 12 Technical Mathematics.

### What should I study after "Equation of a Circle Centre at the Origin"?

Continue with the next section in Analytical Geometry, or test your understanding with the interactive quiz linked to this section.

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