Question

Given: a = 8, b = 6, Angle C = 60

Angle A =

14°
46°
74°
106°

Answer 1

we could use the law of cosines to find side c, and then the law of sines to find angle A

Answer 2

i
The only angle you are given is C, so use c^2 = a^2 + b^2 - 2abcosC...now substitute

Answer 3

Would you use the formula a^2=b^2+c^2-2bcCosA

Answer 4

yes

Answer 5

okay thanks ill try

Answer 6

okay

Answer 7

This is a 2 step problem. find side c using
\[ c^2 = a^2 + b^2 - 2\ a\ b \cos(C) \]

after you find c, you can use the Law of Sines
\[ \frac{\sin A}{a}= \frac{\sin C}{c} \]

Answer 8

okay thanks