Question

Us the law of sines to solve the triangle

Answer 1

Explanation:

<A = 180-35-21=124

`(28)/(sin 35)=(c)/(sin 21)` cross multiply and solve for c

c = 1.2

`(28)/(sin 35)=(a)/(sin 124)`

a = 40.4

There is is one case when law of sines cannnot be used but i can't remember when. I think it's when solving for largest angle only.