Question

find the length of a

Answer 1

use the law of cosines, I am blind!

Answer 2

(just started and so offense. It's all the fault of the code of conduct of openstudy ;) )

Answer 3

is 19.45 my answer?

Answer 4

How did you obtain the answer, may I know please?

Answer 5

I don't have a calculator with me, but it looks kind of good to me.

Answer 6

\[\sqrt{11^2+13^2-2(11)(13)\cos(108)}\]

Answer 7

@student_basil

Answer 8

does that look correct?

Answer 9

that looks good!

Answer 10

thank you!

Answer 11

You are a good worker, I already saw a person leave after I gave him/her just a hint instead of answer.

Answer 12

My pleasure!