PARALLEL LINES

PARALLEL LINES

1. PARALLEL LINES are two lines that are always the same distance apart and never touch .In order for two lines to be parallel ,they must be drawn in a same plane.

2. TRANSVERSAL LINE-It is a line that passes through two lines in the same plane at two distinct points.

3. ALTERNATE INTERIOR ANGLE-When two parallel lines are crossed by a transversal, the pair of angles formed on the inner side of the parallel lines, but on the opposite sides of the transversal are called alternate interior angles. These angles are always equal.

4. ALTERNATE EXTERIOR ANGLE-Alternate exterior angles are the pair of angles that lie on the outer side of the two parallel lines but on either side of the transversal line.

5. LINEAR PAIR-A linear pair is a pair of adjacent angles formed when two lines intersect.