### Home > A2C > Chapter 6 > Lesson 6.1.3 > Problem 6-51

6-51.

Find the value of . Refer to the Math Notes box above, for a reminder of the Laws of Sines and Cosines.

**Justify**how you know your answer is reasonable.

Use the Law of Cosines.

6-51.

Find the value of . Refer to the Math Notes box above, for a reminder of the Laws of Sines and Cosines.

Use the Law of Cosines.