LEARN MATH STEP BY STEP THROUGH VERY EASY PROCESS

GEOMETRY - PARALLEL LINES

__PARALLEL LINES -__

**Two straight lines lying in
the same plane are considered to be parallel to each other when they do not
meet (if produced on both side), here, AB & CD are two parallel lines. We
write AB || CD or CD || AB.**

**Parallel lines may be marked with arrows as shown.**