Question

Can someone please help me please. I would really appreciate it :)

Answer 1

Alright we are going to have to use the law of cosines to get an angle here. Do you know what the law of cosines says?

Answer 2

No I do not
:(

Answer 3

I think its A, but I am sure I am wrong.

Answer 4

Don't worry! :)
ok... well let me write it up for us... which angle would you like to solve for ?

Answer 5

I think it wants me to solve all of them

Answer 6

so let's get <A first... that is fine with me!

Answer 7

I am so confused lol, I am sorry. I am not usually this clueless.

Answer 8

Okay :) sounds like a plan

Answer 9

That first line is the formula... the law of cosines. The second line there is what we were given, plugged into the formula. Can you solve that equation so the cos A part is on a side by itself?