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Area of a triangle
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- Slides in PPTX (with click-to-reveal answers)
- Slides in PDF (one slide per page, suitable for importing into IWB software)
- Worksheet (with space for student work)
- Handout (slides with exercises only; 4 per page for reduced printing)
- Skills drill worksheet (15 questions on one side of A4; answers included)
Link to an interesting problem
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Interactive GeoGebra activity: Create a triangle with a given area
Interactive GeoGebra activity: Find the area of a triangle given the coordinates of its vertices
In this activity, at least one side of the triangle will be parallel to one of the axes.
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