Episode 22 — 2D & 3D Trigonometry

Solving Triangles Using 2D Trig

Learners will be able to:

• Represent given information in a simplified diagram using triangles and label each vertex accurately. • Calculate the length of PT using the sine rule in triangle CPT. • Use the definition of cosine to calculate the length of TB in right-angled triangle PBT. • Apply trigonometric ratios to solve two-dimensional problems involving unknown angles and lengths in triangles. • Interpret the properties of parallel lines to determine corresponding angles and relationships between triangles.