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General Maths Units 1 and 2

The Cosine Rule

Applications of trigonometry

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About this lesson
This is another in the Applications of Triginometry series of videos for the Year 11 General Maths (VCE Units 1 and 2) course. Building on the last video which looked at the Sine Rule, I now look at how you can find missing sides and angles for other non right-angled triangles. With the Sine Rule you needed one side and an opposite angle. With the Cosine Rule you are given two sides and an included angle. There are lots of worked examples all used to explain the theory in a really easy to understand way.
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VCE Maths exam question content used by permission, ©VCAA. The VCAA is not affiliated with, and does not endorse, this video resource. VCE® is a registered trademark of the VCAA. Past VCE exams and related content can be accessed at www.vcaa.vic.edu.au

Video details
  • Title The Cosine Rule
  • Section Applications of trigonometry
  • Course General Maths Units 1 and 2

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