Parallel lines are straight lines that do not meet and are always an equal distance apart. Alternate and corresponding angles formed by parallel lines are equal, while opposite angles formed when two lines intersect are also equal. Supplementary angles add up to 180 degrees.

2. Parallel lines are straight lines which do not
meet.
They are always equidistant.
Equidistant- they are always an equal distance
apart.
Parallel
lines.

3. Alternate (Z) angles are equal.

4. Corresponding
(F) angles are
equal.

5. The two lines intersect, the opposite
(X) angles are equal.

6. Supplementary angles add up to 180˚