Faith stands in her backyard and watches her children play. Nadia is 60 feet away in the sandbox.
Faith turns 130° and views Jolene on the swing set. Jolene is 115 feet away.
How far apart are Nadia and Jolene?
We nan use the Law of Cosines to find the distance , D
D^2 = 60^2 + 115^2 -2 (60 * 115) cos ( 130)
D^2 = 25695
D = sqrt ( 25695) ≈ 160.3 ft
+109 
