Question

HELP

Which Trig ratio should be used to find the missing side?


A.Sin

B.Cos

C.Tan

Answer 1

the answer is B. Cos

Answer 2

cos

Explanation:

take 31 degree as reference angle

using cos rule

cos 31=adjacent/hypotenuse

0.85=14/x

x=14/0.85

x=16.47

x=16.5