Question

In triangle ABC, what is the measure of A if a = 11, b = 13, and c = 7?

57.79°

49.62°

38.17°

32.21°

Answer 1

can you post a picture?.And btw are you looking for an angle?

Answer 2

if you're looking for an angle just use the rules of cos,tan or sin.

Answer 3

\[a ^{2}=b ^{2}+c ^{2}-2bc \cos A\]

Answer 4

u can do this if u know cosine rule

Answer 5

@davidza6496

Answer 6

thanks i figured it out already

Answer 7

ok