Write a converse theorem that proves lines a and b below are parallel. If _ _ angles are _, then two lines vk it by a transversal are parallel.

can you rephrase the question ? it is unclear : -)

step-by-step explanation:

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true

step-by-step explanation:

the answer is  

d.

21

i did this one. so you should get it right.