Mathematics: Analysis and Approaches · Topic 3: Geometry and trigonometry

SL3.3 — Applications of trigonometry

Mathematics: Analysis and Approaches · SL / HL · syllabus-mapped notes

1. Angles of elevation and depression

   Apply trigonometry to sightlines measured above or below the horizontal.

2. Bearings

   Describe direction as a three-figure angle measured clockwise from north.

3. Constructing and solving diagrams

   Turn written statements into labelled diagrams and combine Pythagoras with right and non-right trigonometry.