Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 5 - No. 25)
What is the key function of trigonometry?
Calculating the area of shapes.
Studying the relationship between angles and side lengths in triangles.
Solving algebraic equations.
Measuring the volume of three-dimensional objects.
Explication
Trigonometry focuses on the relationships between angles and sides of triangles.