parellel lines
Yes.
Not sure about "parellel" but a quadrangle with two pairs of parallel lines MUST be a parallelogram.
Parallel lines are always the same distance apart and never touching. This is the definition of parallel in the plane. When we deal with spheres and other geometries, we must sometimes modify this definition. In any case, in the plane they do not meet.
Yes!
Parralell lines are lines that run together and will never meet. For example: __________ __________ Perpendicular lines are lines that run at a 90 degree angle to each other. For example: ____ | |
parellel lines
No
Technically speaking (in the strict mathematical sense) longitude lines are not parallel, for they do eventually meet. They meet not in one but in two places. I would say however, that they are parallel in the everyday, man-on-the-street sense.
Parellel lines
Yes.
Not sure about "parellel" but a quadrangle with two pairs of parallel lines MUST be a parallelogram.
Parallel lines are always the same distance apart and never touching. This is the definition of parallel in the plane. When we deal with spheres and other geometries, we must sometimes modify this definition. In any case, in the plane they do not meet.
parellel
None
Yes!
None