In the diagram, transversal t cuts parallel lines a and b. Which equation is necessarily true?

A.
m∠1 = m∠7

B.
m∠3 = m∠6

C.
m∠5 + m∠8 = 90°

D.
m∠6 + m∠7 = 180°

In the diagram transversal t cuts parallel lines a and b Which equation is necessarily true A m1 m7 B m3 m6 C m5 m8 90 D m6 m7 180 class=