collinear means on the same line so they would be collinear if they are on the same line.!
8 collinear points determine 28 unique line segments
If each segment intersects exactly two other segment but could, if extended, intersect the third, then the figure is a quadrilateral. Otherwise it is a parallelogram.
Opposite Rays - are collinear rays having the same endpoint.
It is an angle.
a triangle
Two collinear rays that do not intersect are called parallel rays. This will only occur for a short time, however, because they will intersect at some point.
Opposite Rays
Oppsite rays
Polygon
It's an angle.
A vertex.
-- Two rays with a common endpoint form an angle. -- If they have a common endpoint, then they are collinear. So I guess, technically, the conditions described in the question aren't possible.
8 collinear points determine 28 unique line segments
10 collinear points form one set of overlapping line segments, of which there are 45.
What about them?These are known as opposite rays. They form a line.
a triangle is formed by line segments that connect two non-collinear points
angle