Question

NEED HELP ASAP..................

Answer 1

you need to find an angle on the bottom line that is equal to the 120, the only given angle.

and the reasoning is exterior alternate angles are equal in parallel lines

Answer 2

angle 3=120....vertical
for a and b to be parallel angle 7 must equal 3 = 120

Answer 3

thats one way or proving but the answer options don't give a 2 step solution

Answer 4

ok thanks