# Trigonometric Ratios and Right-Angled Triangles

> Trigonometric ratios are the foundation of all trigonometry. In Grade 12 Technical Mathematics, you are expected to have a confident grasp of the six trigonometric ratios, special angles…

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## Full notes

This is a preview of the Trigonometric Ratios and Right-Angled Triangles notes for Grade 12 Technical Mathematics. Create a free Hlayiso account to read the full notes, practise every question and track your progress.

## More in Trigonometry

- [Problems in Two and Three Dimensions](https://www.hlayiso.com/grade-12/technical-mathematics/notes/trigonometry/problems-in-two-and-three-dimensions) — Previous section
- [Sine, Cosine and Area Rules](https://www.hlayiso.com/grade-12/technical-mathematics/notes/trigonometry/sine-cosine-and-area-rules) — Next section
- [All Trigonometry sections](https://www.hlayiso.com/grade-12/technical-mathematics/notes/trigonometry)

## Frequently asked questions

### What will I learn in "Trigonometric Ratios and Right-Angled Triangles"?

This section covers Trigonometric Ratios and Right-Angled Triangles as part of Trigonometry 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 "Trigonometric Ratios and Right-Angled Triangles", are written against the official CAPS curriculum and ATP for Grade 12 Technical Mathematics.

### What should I study after "Trigonometric Ratios and Right-Angled Triangles"?

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

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