# Law of Sines

Law of Sines

1.   $\rhd$ Solving for a side of a triangle with the Law of Sines (5:57)

One angle of measure $30$ degrees across from a side of length two, another angle measuring $45$ degrees.  Sal finds that the side across from the 45 degree angle is approximately 2.83 and the one across from the other (105 degree) angle is approximately 5.86.

2.   $\rhd$ Solving for an angle using the law of sines (5:33)
Distance between two people is 40 $m$, find the angle between one of the people and the kite she is flying, which is 30 $m$ away from her.  The angle between the ground near the friend and the kite is 40 degrees.
3.   $\star$ Find the missing triangle measures using the law of sines.
4.   $\rhd$ Proof of the law of sines (6:34)