Mathematics: Applications and Interpretation · Topic 3: Geometry and trigonometry

SL3.2 — Trigonometry: right triangles, sine and cosine rules

Mathematics: Applications and Interpretation · SL / HL · syllabus-mapped notes

1. AISL3.2.1

   Right-angled trigonometry

   Use sine, cosine and tangent to find sides and angles in right-angled triangles.

2. AISL3.2.2

   The sine rule

   Relate sides to the sines of their opposite angles in any triangle.

3. AISL3.2.3

   The cosine rule

   Link three sides and one angle in any triangle.

4. AISL3.2.4

   Area of a triangle

   Find the area from two sides and the included angle.