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°.
Accepted Solution
A:
A.the measures of the angles must be equal Vertical Angles- are the angles opposite of each other when two lines cross. They are always equal.