A video explaining how to use the cosine rule to find missing sides and missing angles. This is for the GCSE higher maths course.
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0:00 Introduction
0:24 Introducing the formula
0:52 Example 1 - finding a missing side
2:38 Example 2 - finding a missing side
3:52 Example 3 - finding a missing angle
6:36 Example 4 - finding a missing angle
7:41 How to know when to use the sine rule or the cosine rule
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The Cosine Rule - GCSE Higher Maths For Country: United States. City: Boise, Dayton, High Point, Provo, Spokane
