Trigonometry: Solving Right-Angled Triangle

OBJECTIVE: At the end of the lesson, students should be able to:

(i) identify a right-angled triangle;

(ii) identify the opposite, and adjacent of any given angle in a right-angled triangle;

(iii) apply the trigonometrical ratios: tangent, sine and cosine to solve right-angled triangles.


Chapter 11 of the New General Mathematics for SSS, Book 1.


Solve the questions below: (Exercise  11a, No. 6, 7, 9 and 10.