Answer:
37.5
Step-by-step explanation:
It uses Sin and the law of Sin says that the ratio of given sides and an angle is always constant
C: 138°
A: 66.4°
B:24.6°
c: 17.5
a: 16
b: 7
16²+7²=c²
256+49=c²
√305=√c²
17.5=c
[tex]tan^-1(16/7)[/tex] =66.4°
(138+66.4)-180= 24.4°
