Finding angles, elevation and bearings
Find an angle with sin⁻¹, cos⁻¹ or tan⁻¹, and use trigonometry for angles of elevation and depression and for bearings.
You will be able to
- Find an angle from two sides with an inverse ratio
- Work with angles of elevation and depression
- Find a bearing from a journey east and north
- Split a journey on a bearing into east and north parts
25 minutes, 7 exam-style questions, with the Scientific Calculator.