# Area of Triangles

#### What's Included

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

# Area of Triangles

By considering a right angled triangle as half a rectangle the students are guided through deriving the formula for any triangle.  The emphasis is placed on recognizing the perpendicular height for isosceles and scalene triangles with different orientations.
##### Differentiated Learning Objectives
• All students should be able to calculate the area of a right-angled triangle as half of a rectangle.
• Most students should be able to derive the formula for the area of a triangle and use it.
• Some students should be able to calculate the area of a compound shape involving rectangles and triangles.

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