## kenneyfamily 2 years ago Given A = 67o, B = 13o, and b = 20.3, which of the following can be used to solve the triangle? a. Law of Sines b. Law of Cosines c. Hero's Formula d. Cannot be solved.

1. kenneyfamily

those are degrees

2. AERONIK

cosine formula is a good option

3. freewilly922

Ah. Law of sines: $\frac{\sin(a)}{A}=\frac{\sin(b)}{b}$ Law of cosines is $c^2 = a^2+b^2 - 2ab\cos(C)$ So what are you given that can be used here?

4. Praja_01

cannot be solved

5. freewilly922

Sorry the law of sines should have been: $\frac{\sin(A)}{a}=\frac{\sin(B)}{b}$

6. kenneyfamily

the angles

7. kenneyfamily

oh and side b

8. freewilly922

Yes it can. You have 1 side and three angles

9. kenneyfamily

so law of sines?

10. freewilly922

And i flipped all my capitol letters with the convention. Yes, Multiple uses of Law of sines would solve the triangle. You would have to do a 180-a-b to get angle c though...