Question

Find the value of a.


81

9

6

36

Answer 1

so for this, we're using the law of cosines again. Can you set up the basic formation of the problem with the info you're given?

Answer 2

a^2 = 5^2 + 8^2 - 2(5)(8) cos48

Answer 3

anyhow.... from here, you would simplify everything. process:

a^2=25+64-80cos48
a^2 =89-80cos48
a^2=89-53.53
a^2=35.469
a=5.9 ( you could probably round to six )

Answer 4

ok thanks so much

Answer 5

no problem! :)

Answer 6

If you need help in the future, I'm here to help \(\ddot\smile\)

Answer 7

ok thank u