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Law of Sines and Cosines Worksheet (pdf)



Wowrksheet Objective

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Students will practice deciding when to apply the law of cosines vs the law of sines to calculate the side length of a triangle and to calculate the measure of an angle. The second part of the sheet focuses on problems that require using the formulas more than once (law of cosines to get side, then law of sides to get angle etc..) (more here)
Download the worksheet (pdf)

Example Worksheet Questions

Law of Sines and Cosines Picture

Law of Sines and Cosines picture

 

Law of Sines and Cosines picture

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Picture of the law of cosines formul;a

Law of Sines Formula

Other Details

This is a 3 part worsheet
  • Model Problems.
  • Determining which formula to use
  • Mixed problems on law of sines and law of cosines
  • Challenge questions
  • Answer Key

Web Resources

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