Question

Match the reasons with the statements in the proof.

Given:
c | | d, m∠ 4 = m∠ 5
Prove:
m∠ 7 = m∠ 8

https://media.glynlyon.com/g_geo_2012/3/page45b.gif

1. c||d, m∠4=m∠5
2. m∠4 = m∠7
3. m∠5 = m∠8
4. m∠7 = m∠8
a) If lines ||, alternate interior angles are equal.
b) Vertical angles are equal
c) substitution
d) given