Question

Marlene noticed that when a pair of parallel lines was cut by a transversal, two particular vertical angles were reflections of each other. What can she conclude from this observation?
A. the measures of the angles must be equal.
B.the angles must be complementary.
C.the angles must be supplementary.
D.the measures of the angles must add to 360°.

Answer 1

It should be C because its being cut by a traversal