- mathcentre workbookUsing the sine and cosine rules to find missing sides and angles in non right-angled triangles.

- Maths Genie videoVideo showing how to use the Sine rule to find missing sides and angles in non-right angled triangles.
- Maths Genie videoVideo showing how to use the Cosine rule to find missing sides and angles in non-right angled triangles.

Also see our maths help sessions, and the stats help resources