Transversal t cuts parallel lines a and b as shown in the diagram. Which equation is necessarily true?


A.
m∠1 = m∠2
B.
m∠4 = m∠6
C.
m∠1 + m∠5 = 90°
D.
m∠3 + m∠5 = 180°
E.
m∠7 = m∠8
Reset Next