Question

approximate m angle c.
a. 22.7 degrees
b. 27 degrees
c. 35.3 degrees
d. 122 degrees

Answer 1

use cosine rule !

Answer 2

you can use one of these sin cosine or tan doesn't matter
you would get same answer

Answer 3

\[\rm sin = \frac{ opposite }{ hypotenuse }~~~~ \cos = \frac{ adjacent }{ hypotenuse } ~~\tan= \frac{ opposite }{ adjacent }\]