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.

Question

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.

anonymous · Answer

those are degrees

anonymous · Answer

cosine formula is a good option

anonymous · Answer

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?

anonymous · Answer

cannot be solved

anonymous · Answer

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

anonymous · Answer

the angles

anonymous · Answer

oh and side b

anonymous · Answer

Yes it can. You have 1 side and three angles

anonymous · Answer

so law of sines?

anonymous · Answer

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...