Question

Given a || b , and c is not parallel to a or b,

Answer 1

Answer:

Options A and D.

Step-by-step explanation:

Given information: a || b , and c is not parallel to a or b.

If two lines are parallel and a transversal line intersect both lines, then

1. Corresponding angles are equal.

2. Alternate exterior angles are equal.

3. Alternate interior angles are equal.

Using the above definitions, we get

$\angle 4=\angle 8$     (Corresponding angles)

$\angle 2=\angle 7$     (Alternate exterior angles)

Since line c is not parallel to a or b.  

$\angle 7=\angle 10$

$\angle 8=\angle 9$

Hence, the correct options are A and D.

Answer 2

Answer:

m<4=m<8

m<2=m<7