Question

help

Answer 1

We're given

a = 14.1
b = 8
c = 20

a is opposite A
b is opposite B
c is opposite C

Answer 2

to find angle C, you can use the law of cosines

c^2 = a^2 + b^2 - 2*a*b*cos(C)

Answer 3

plug in the given info to get

c^2 = a^2 + b^2 - 2*a*b*cos(C)

20^2 = 14.1^2 + 8^2 - 2*14.1*8*cos(C)

now solve for C

Answer 4

@jim_thompson5910 is right, and you just plug the numbers in