Determine if Lines are Parallel

Determine if the following examples depict parallel lines. If the lines are parallel state which theorem proves that they are parallel. If the lines are not parallel state "not parallel".

Question 1:

1. Are lines j and k parallel? If they are parallel, state which theorem makes them parallel. If they are not parallel, state "not parallel".

Question 2:

2. Are lines j and k parallel? If they are parallel, state which theorem makes them parallel. If they are not parallel, state "not parallel".

Question 3:

3. Are lines j and k parallel? If they are parallel, state which theorem makes them parallel. If they are not parallel, state "not parallel".

Question 4:

4. Which lines are parallel in the diagram above?

j is parallel to k and l is parallel to m No parallel lines l is parallel to m j is parallel to k

Question 5:

5. Which lines are parallel in the diagram above?

j is parallel to k and l is parallel to m No lines are parallel j is parallel to k l is parallel to m