# Circle equation, degrees and radians

> In this section we connect the equation of a circle to the measurement of angles and introduce the radian: the SI unit of angular measurement. Understanding radians is essential for working with arc…

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## Full notes

This is a preview of the Circle equation, degrees and radians notes for Grade 11 Technical Mathematics. Create a free Hlayiso account to read the full notes, practise every question and track your progress.

## More in Circles, angles and angular movement

- [Arc length, sectors and segments](https://www.hlayiso.com/grade-11/technical-mathematics/notes/circles-angles-and-angular-movement/arc-length-sectors-and-segments) — Next section
- [All Circles, angles and angular movement sections](https://www.hlayiso.com/grade-11/technical-mathematics/notes/circles-angles-and-angular-movement)

## Frequently asked questions

### What will I learn in "Circle equation, degrees and radians"?

This section covers Circle equation, degrees and radians as part of Circles, angles and angular movement in Grade 11 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 "Circle equation, degrees and radians", are written against the official CAPS curriculum and ATP for Grade 11 Technical Mathematics.

### What should I study after "Circle equation, degrees and radians"?

Continue with the next section in Circles, angles and angular movement, or test your understanding with the interactive quiz linked to this section.

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