from mathematics.anna.geometry.trig.law_of_cosines.law_of_cosines import Cosine

prob3 = Cosine(7,3)
prob3.angle(5)
180 - 142

prob8 = Cosine(8,6)
prob8.side(60)
prob8 = Cosine(6, 7.2)
prob8.angle(8)

prob7 = Cosine(5, 5)
prob7.angle(7)

180 - 91
