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### Objective

Students will practice applying the law of cosines to calculate the side length of a triangle and to calculate the measure of an angle. Students will also extend their thinking by applying the law of cosines to word problems and challenge questions.

### Example Questions

### Visual Aides

### Other Details

This is a 3 part worksheet:

- Model Problems
- Calculate Side using Law of Cosines
- Calculate Angle using Law of Cosines
- Mixed (angle and side)problems
- Challenge questions
- Answer Key

### Resources

- Video Tutorial (You Tube Style) on the law of cosines
- Pictures of the law of cosines (formula, triangles laballed etc..)
- Law of Sines and Cosines worksheets