Sine and Cosine Rules and Area of Triangles

This Sine and Cosine Rules and Area of Triangles assessment also includes:

Learners discover how to find missing sides and angles using trigonometry. Scholars first watch a video covering the Law of Sines and Cosines, as well as the area formula for a triangle. To test their knowledge, they complete a worksheet of problems involving these formulas.

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Instructional Ideas

  • Use the resource as an intervention tool
  • Pause the video to have learners work out solutions before viewing answers
Classroom Considerations

  • Note that US pupils are more likely to recognize the Law of Sines and Law of Cosines rather than the Sine Rule and Cosine Rule
Pros

  • Diagrams are well-drawn and professional-looking
Cons

  • No real-world applications