Question

Solve the triangle.

B = 36°, a = 38, c = 17

I keep getting a 31 decimal for b, but its not correct

Answer 1

Ok how did you set it up?

Answer 2

b^2=(38^2)+(17^2)-2(38)(17)sin36

Answer 3

Which Law did you use?

Answer 4

@iluvvyyhu

Answer 5

i dont know..

Answer 6

Well that is the key to your problem...the rule that you used has a name... it is probably the title of the section you are studying and its name is most definitely in the lesson...It's the Law of _________

Answer 7

Trust me once you figure the name of the Law you will have this problem licked!

Answer 8

oh i think i figured out what i did wrong, its supposed to be cos36 not sin

Answer 9

Yep because you are using what is known as the Law of Cosines!