Question

I need some help with trig. Can anyone explain how to solve this problem? I do not want a straight up answer.

Answer 1

I guess you could use the law of sins which is like c^2=a^2+b^2-2ab(cos(c))

Answer 2

not sure if thats the acutal equation i could be wrong

Answer 3

Thats the best answer Ive got Ill try it out

Answer 4

just get cos c of by itself and then proceed to take the cos^-1 of both sides and find the angle make sure its in degrees

Answer 5

actually idk if needs to be in degrees or not

Answer 6

Yes it needs to be degrees

Answer 7

11^2=7^2+8^2 - 2(7)(8)cos(c)

Answer 8

can you take it from there?

Answer 9

Ill try