Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 1 - No. 14)

What is the core purpose of studying trigonometry?

Calculating areas of various shapes.

Investigating the relationships between angles and sides in triangles.

Solving complex algebraic equations.

Determining the volume of three-dimensional objects.

Trigonometry is primarily concerned with the relationship between angles and sides of triangles.