# Trigonometry - Area of Triangles

#### What's Included

• Smart Notebooks Presentation
• Activ Inspire Flipchart
• Lesson Plan
• Microsoft PowerPoint Presentation
• Differentiated Worksheet

# Trigonometry - Area of Triangles

Students learn how to derive and apply the area formulae for non-right-angles.  As learning progresses they are challenged to apply additional formulae to calculate unknown dimensions.
##### 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.
Proof of Area of a Triangle
##### Related Blogs
Solving Problems with Non-Right-Angled Triangles
Trigonometry - Non-Right-Angled Triangles

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