parallel lines are any lines that will never touch. on a 3D plane, there will be many lines that won't intersect another. but parallel lines have a specific definition that there is no way to subcatigorize it
One side cannot be parallel because parallel is a relationship between two lines (or sides). A square has two pairs of parallel lines.
Two lines are coplanar iff they are parallel OR intersect.
No, a rhombus always has two pairs of parallel lines
no, only one side of parallel lines
A quadrilateral with only one pair of parallel lines is called a trapezoid.
Parallelograms have two sets of parallel lines. Trapezoids only have one pair of parallel lines.
a trapezium
No, parallel lines never intersect, so they do not have any points in common. Intersecting lines have one common point.
Trapezoid
Yes
a rectangle is a shape that has two sets of parallel lines a trapezoid only has to have one set of parallel lines
Only one pair: trapezium.