Let’s learn about Point!
Definition of point in geometry is well explained, along with simple explanation, different types of points, examples, etc. Let’s explore the point!
Point is a tiny word that doesn’t have any size except the position.
Point is defined as a position that doesn’t have any size or thickness.
There were so many confusions on the dimension of a point. Finally, it is concluded as 0- dimensional position.
Points are classified into few types,
Collinear Points Definition
As the name suggests, colinear means linear. The points which are in a linear section or on a straight line, are known as collinear points.
Col means together in Latin word. So, collinear means col + linear means points together in a linear way.
Let’s consider, point P, Q, R, S on the straight line, as below.
Collinear Point Examples
Collinear points can be easily understood with a very simple example. We all have learned that light travels in a straight line and a candle experiment has been done.
In that experiment, we have seen that all the points (P, Q, R, S) are positioned in a straight line. Here come the collinear points, as all points are in the same straight line.
On a single bench, you along with your friends are sitting
Non-collinear Point Definition
As the name suggests, non-collinear means non-linear. The points which are not on in a linear section or not on a straight line, are known as non-collinear points.
Let’s consider, points P’, Q’, as non-colinear points.
Non-collinear Point Examples
Non-collinear points can also be explained with a very simple example. If you take few points and try to draw a single straight line and but you are not able to make it, then these points are non-collinear points.
Concurrent Points Definition
When two or more lines are intersected at a point, is called a concurrent point.
Let’s consider, point P, Q, R, S, and the line between P-R and Q-S intersected at point A. This point A is called a concurrent point.
Concurrent Points Examples
Let’s see an easy example of concurrent points. We all know kites and also spent time flying the kites.
If you see the structure of the kite, you will see two sticks are crossed and intersected at a point. This point is known as the concurrent point.
Coplanar Point Definition
Coplanar, as the name implies, means the points lie on a plane.
Here, point A, B, C, D all are on a single plane. So, these points are coplanar points.
Coplanar Point Examples
Take four points on a table, it means all the points are on the table surface. So, these points are coplanar points.
|Collinear Points||Coplanar points|
|All points on a line||All points on a single plane|
|Points on a straight line are examples||Points a single plane are examples.|
There are so many interesting philosophies existed about points, these are,
Refer to the below diagram and try to solve the small exercise.
Points A, B, C, D, E, F, G, and H are simple dots that don’t have any dimension. These are points.
The following points lie on the same straight line and we already learned that if points lie on the same line is called collinear points,
Points B, and D are not on the same line and these are colinear points. The following points are on the same plane and we already learned that if points lie on the same plane is called coplanar points,
Hence, we have got a basic idea about what is point in geometry. Any comments, please let us know.