Trigonometry 2

Building upon the basics of right-angled triangle trigonometry, this topic extends learners’ understanding to non-right-angled triangles using the sine rule and cosine rule. Students also explore real-life applications such as navigation, engineering, and architecture. Special focus is given to solving triangles, finding areas, and understanding how trigonometric concepts model practical situations.

Learning Outcomes:
The learner should be able to:

•  determine trigonometric ratios of angles greater than 90⁰
• use the graphs of trigonometric functions to determine values of sine, cosine and tangent for any angle.
• Apply the sine rule and cosine rule to solve any triangle.
• apply sine and cosine rules to solve real life problems.
• Calculate unknown sides and angles in non-right-angled triangles.
• Find the area of a triangle using trigonometric formulas.