The image shows parallel lines cut by a transversal. The expressions represent unknown angle measurements. What is the value of x?

A) 59
B) 65
C) 77
D) 83

Answer) C. 77
This picture shows how I got to the answer. You must set up the two expressions to equal each other and then solve for X

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.