When would be only four different equations for a set of math mountain numbers

Tell me how you got the it use the figures to answer questions 1and 2. in each diagram, line k is parallel to line l, and line t intersects lines. 1. based on the diagrams, what is the value of x? 2. how would you verify your answer for x?

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Atemperature of 1.64◦f corresponds to answer in units of ◦c.