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What are the subsets of lines?
the subsets of a line are the segments the rays and the points hope this will help pls mark good
What kind of triangle is created by the intersection of two perpendicular lines rays or line segments?
A "right" triangle, so called because it contains a "right angle".
Do rays that are not parallel intersect?
In Euclidean geometry, if they are coplanar they must intersect. But if they are in different planes, they may not. The following example will illustrate this: Picture yourself in a cuboid room - ie a normal shaped room. Stand with your back to one of the walls. Ray 1 forms the join of the wall behind you and the floor. Ray 2 is the line where the wall facing you meets one of the side walls. Rays 1 and 2 are not parallel but they can never meet - because they are not in the same plane.
If two lines are parallel are they congruent?
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.
If the rays do not intersect at one point what do this indicate?
It means that they are skew.
