Answer:
Collinear and Non- Collinear Points
Points which lie on the same straight line are collinear points. The points which don’t lie on the same straight line are non-collinear points.
Ray
Now we will discuss what is meant by a ray. What comes to your mind when you think of the ray? Sun rays right? We know that the sun rays start from the sun and goes on endlessly. That means it has the starting point but it has no endpoint. So this nothing but a ray.
The above figure shows what a ray is. A ray is nothing but a portion of a line. As the ray goes on endlessly, we cannot locate its end point. Let us name one of point as E. For the next point, we will just locate a point on the ray, say point F. So the name of the ray is ray EF.
Line
A line is a straight path that is endless in both directions. That means it extends in both directions without end.
Line Segment
A line segment is a part of a line. The main difference the line and the line segment is that lines do not have endpoints while line segments have endpoints.
Plane
The plane is a two-dimensional surface. A plane has length and width, but no height, and extends infinitely far on all sides. It is made up of made up of an infinite amount of lines.
Midpoint
A midpoint of the segment is the point that divides the segments into two congruent segments.
Angles
Angle is the combination of two rays with a common endpoint. The symbol for an angle is ∠. The corner point of an angle is called the vertex of an angle. The two straight sides of the angle are the arms of the angle.
Parallel lines
When the distance between a pair of lines is always the same, then we call such lines as parallel lines.
Intersecting Lines
Lines that intersect each other at one point are something we call as intersecting lines.
