Question

which pair of lines are parallel?
a. a and b
b. a and c
c. c and d
d. b and d

Explanation:

Step1: Recall parallel - line criteria

Parallel lines have equal corresponding angles, alternate - interior angles, or same - side interior angles that are supplementary.

Step2: Analyze angle relationships

Lines \(c\) and \(d\) have equal corresponding angles (both have an angle of \(95^{\circ}\) formed with a transversal).

Answer:

C. c and d