Proving Lines Parallel
You can prove lines are parallel by the following reasons:
Corresponding
Angles Converse
Alternate Interior
Angles Converse
Alternate Exterior
Angles Converse
Consecutive Interior
Angles Converse
If two lines are cut by a transversal so that corresponding angles
are congruent, then the lines are parallel.
Example:
If two lines are cut by a transversal so that altemate interior angles
are congruent, then the lines are parallel.
Example:
If two lines are cut by a transversal so that altemate exterior angles
are congruent, then the lines are parallel.
Example:
8 7
If two lines are cut by a transversal so that consecutive interior angles
are supplementary, then the lines are parallel.
Example:
m