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Questions on Triangles - Sine and Cosine Rule

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Examples, solutions, videos, activities, and worksheets that are suitable for A Level Maths.

How to use the Sine Rule or Cosine Rule to find missing sides or angles?

The following diagram shows the Sine Rule or Law of Sines. Scroll down the page for more examples and solutions on the Sine Rule and Cosine Rule.

Sine Rule

Core 2 - Sine and Cosine Rule - Introduction and Tutorial



Sine rule (Finding a Length)
Sine rule (Finding an Angle) Cosine rule (Finding an Angle) Sine and Cosine Rules : C2 OCR January 2013 Q1

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