Question

Use the diagram below. Which statement can be used by itself to prove that two lines in the diagram are parallel?


<7=<4
<7=<10
m<6+m<7=180 degrees
m<6+m<11=180 degrees

Answer 1

You can use <7=<10 to prove the lines are parallel.

Answer 2

comparing 7 and 4 does not say anything about the other line, m.
<6 and <7 does not say anything about the other line, m
and <6 + <11 do not make 180