Read the instructions first and then answer.

Answers
Step-by-step explanation:
A)
Point:-
A point determines a location and it occupies a place.It has no measurement.
A point is represented by the Capital letters of English Alphabet.
A,B,..Z
A point has no dimension.
Number of dimensions of a point = 0
Example:-
- Tip of a pen
- Joint place of the line segments.
- End position of a line segment .
- The pointed end of a needle.
- End of a pencil.
Line:-
A figure obtained by extending the both ends of a linesegment endlessly.
It has no end points. It has so many points in it.
A line is nothing but a length without having breadth.
It is represented by Capital letters of English alphabet like AB line, CD line or small letters like
l,m,n ...
A line has only one dimension .So it is a 1-D figure
Number of dimensions of a line = 1
Examples:-
- Edge of a blackboard
- Wire or tape.
- Edges of tables,doors and walls
Plane:-
a plane is a flat, two-dimensional surface that extends endlessly. A plane is the two-dimensional figure.
Edges of a plane are lines.
It is represented by two letters (English alphabet)
A plane has length and breadth .It is a 2-D figure.
Number of dimensions of a plane = 2
Examples:-
- XY-plane
- triangular plane
- Circular plane
- blackboard plane.
Point ,Line and Plane are the undefined terms in the geometry.
The definitions of these above terms are kept in the Volume -1 of the Elements written by Euclid.
It contained 23 definitions.
B)1) Collinear points :-
Points are on the same line are called Collinear points.
A,B,C are the three collinear points if,
- AB+BC=AC
- area of a triangle formed by the three points is zero.
- We can't draw a triangle through this points.
A__________B____________C
2)Coplanar Points:-
Points on the same plane are called Coplanar Points.
if the points are said to be coplanar if, there exists a geometric plane that contains them all.
.A
.B
.C