Collinear lines lie on the same straight line.
chord
segment
The same line.
It is the diameter of the circle.
They lie in the same plane, but they don't necessarily have to lie on the same line. Every triangle consists of three points that are coplanar but non-colinear.
The two phrases are equivalent: collinear means in the same line [segment].
A line segment (sometimes just segment) is a pair of endpoints and all the points on a line between them.
A line segment (sometimes just segment) is a pair of endpoints and all the points on a line between them.
Yes, a plane containing 2 points of a line contains the entire line. Let us consider two points on a plane and then draw a line segment joining those two points. Since the points lie on the plane so line segment has to lie completely on that plane too. Now if we extend the line segment indefinitely in both directions we get a line and that line also has to lie on the same plane since some definite part(line segment) of it(line) also lies on the same plane.
true
A chord is a line segment whose endpoints lie on a circle. A secant is a line (or line segment) that intersects a circle in two places, endpoints NOT on the circle.
the endpoints lie on each other
Collinear lines lie on the same straight line
chord
The centroid, circumcenter and orthocenter are the 3 points of concurrency that always lie on a line.
segment
lines which lie in same pane are known as parallel lines or lines which do not intersect are known as parallel lines they extend in both the direction