There are more than two: A parallelogram has two sets of parallel line segments which may be of unequal length; A rectangle is a parallelogram that has line segments that meet at right angles; A rhombus has to sets of parallel line segments which are all of the same length; A square is a rhombus which has line segments meeting at right angles, or stated differently a square is a rectangle which has all line segments of the same length.
no They just have to have four sides the same length and the oppsite line segments must be parallel.
Lines in the same plane that are not parallel are intersecting lines.
No
A vertical line has an undefined slope. For the line to be parallel to a vertical line, the slopes would have to be the same. Therefore, the line parallel to a vertical line also has an undefined slope.
Lines are parallel if they lie in the same plane, and are the same distance apart over their entire length. Parallel lines remain the same distance apart over their entire length. No matter how far you extend them, they will never meet.
There are more than two: A parallelogram has two sets of parallel line segments which may be of unequal length; A rectangle is a parallelogram that has line segments that meet at right angles; A rhombus has to sets of parallel line segments which are all of the same length; A square is a rhombus which has line segments meeting at right angles, or stated differently a square is a rectangle which has all line segments of the same length.
no, if they are both in the same plane and IF EXTENDED INDEFINITELY would never intersect at any point then the segments are considered parallel.
Because they are parallel, while the earth is round. So a line round the equator will be longer than a line parallel with it at a higher latitude.
All sides of all of them are the same length and are parallel to each other.
Line segments are congruent if they have the same length. However, they need not be parallel. They can be at any angle or orientation on the plane
The same. Parallel lines have the same slope.
First, lines and rays cannot be congruent because they do not have both end points defined. Not having an end point define means we cannot talk about their length so they can't be congruent. Line segments, however, can be congruent. Congruent line segments NEED NOT be parallel.Furthermore, if two line segments are parallel, that does not mean they are congruent since parallel line segments may not have the same length.Congruent line segments would be ones that are the same length.
For two lines to be parallel they must have the same slope. A line parallel to a line with slope -2 would have a slope of -2.
The slope of a line and of a line parallel to it is the same.
In order to describe parallel, you need 2 lines to be parallel to each other. The lines will lie in the same plane, and the right-angle distance between the 2 lines will be constant for the entire length of the lines. Since lines are infinite length in length, they will never intersect.
A shape in which every line/edge is not the same length OR A shape in which every angle is not equal