Students learn how to derive and apply the area formulae for non-right-angles.
Later, as learning progresses, they are challenged to apply different formulae to calculate unknown dimensions.
Related Blog
- Solving Problems with Non-Right-Angled Triangles
- Problem Solving Focus: Tangents in an Equilateral Triangle
Scheme of Work Link
Trigonometry - Non-Right-Angled Triangles
Differentiated Learning Objectives
- All students should be able to calculate the area of a non-right-angled if the value of two sides and the adjoining angle are known.
- Most students should be able to calculate the area of a triangle using a combination of the Cosine and Area formulae.
- Some students should be able to derive and solve equations using the Area of Triangle formula.
