Answer:
m∠7 + m∠6
Step-by-step explanation:
180 - m∠3
This is equal to m<4
m∠2 + m∠6
The opposite interior angles of a triangle are equal to the exterior angle
This is equal to m<4
180 - m∠7
This is equal to m<5 + m<6
If m and l are parallel, then m<5 + m<6 is equal to m<4 because the are opposite interior angles.
This is equal to m<4
m∠7 + m∠6
This is equal to 180 - m<5
This is not equal to m<4
