They have the same angle relative to any plane or line and never intersect.
Two pairs of parallel lines.
Parallel Lines Never Meet.This is one of their properties.
A parallelogram has 2 pairs of parallel lines
1 sideno Anglesinfant lines of symmetryNo parallel and Perpendicular lines
In Euclidean geometry, parallel lines are the same distance apart and never meet.
Two sets of parallel lines meeting at right angles.
Its diagonals are congruent. One set of parallel sides. The other two non parallel lines are congruent.
A parallelogram consists of two pairs of parallel lines. Everything else follows from this.
1. Two sets of parallel lines 2. All angles are 90 degrees3. Four lines of symmetry
A cylinder has 2 congruent bases, parallel lines called "elements" that connect the bases, and can have neither concave nor convex properties.
Opp. sides & angles are equal.opp. sides are parallel each angle is 90
Same slopes and different intercepts