Question

question 16 of 49 what is always true about vertical angles? a. vertical angles combine to form a straight angle. b. the sum of vertical angles is always 180°. c. vertical angles are equal in measure. d. the sum of vertical angles is always 90°.

Explanation:

Vertical angles are formed when two lines intersect. By definition, they are non - adjacent angles opposite each other and have equal measures.

Answer:

C. Vertical angles are equal in measure.