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The Law of Cosines

Videos, worksheets, games and acivities to help students learn how to use the law of cosines.

 

 

The Cosine Law
This lesson shows how to use the Cosine Law to find both sides and angles in triangles.

 

 

Law of Cosines
Learn about Law of Cosines, a brief introduction

 

 

Law of Cosines
Demo solving an oblique triangle using the Law of Cosines

 

 

Comparing the sine law and cosine law
This video show students when they need to use the sine law and when they need to use the cosine law for finding the missing sides of non right triangles.

 

 

 

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