Question

I need help with this please.

Answer 1

C: 138°

A: 66.4°

B:24.6°

c: 17.5

a: 16

b: 7

Explanation:

16²+7²=c²

256+49=c²

√305=√c²

17.5=c

`tan^-1(16/7)` =66.4°

(138+66.4)-180= 24.4°

Answer 2

37.5

Explanation:

It uses Sin and the law of Sin says that the ratio of given sides and an angle is always constant