Students learn how to apply Sin, Cos and Tan to find missing angles in right-angled triangles.

Later, as learning progresses they are challenged to apply additionalÂ theorems associated to triangles to solve more complex problems.

**Differentiated Learning Objectives**

- All students should be able to use the Sine and Cosine function to calculate angles in right-angled triangles.
- Most students should be able to use the Sine, Cosine and Tangent function to calculate angles in right angled triangles.
- Some students should be able to calculate an angle in an isosceles triangle using Trigonometrical functions.