LEARN MATH STEP BY STEP THROUGH VERY EASY PROCESS

__GEOMETRY -__

**Geometry is very essential part of mathematics. This is also very obvious part of higher mathematics. Three building blocks of geometry are (1) points, (2) lines, and (3) planes.**

__(1) Point : -__

**Point is nothing but a dot on a sheet board or paper.**

** .**

** Point**

**Features Of Point -**

**- A point is an exact location in space.**

**- It has no length and width.**

**- It is named by a capital letter.**

**- We represent a point by a dot (.)**

__(2) Straight Line -__

** --------------------------------**

** A B**

**Features Of Straight Line -**

**-
A line has no breadth, thickness
and end points. It cannot be measured.**

**- It can be extended to any length on both sides.**

**- In symbols line AB is written as**

** <=>
**

** AB or BA**

** Lines Are Two Types -**

__Types Of Straight Line -__

__(A) Parallel Line -__

__Features Of Parallel Lines :-__

**The lines that do not meet at any point no matter in whatever
direction we continue,
are known as parallel lines.**

**The distance between the parallel lines is always equal.**

__(B) Intersecting Lines -__

__Features Of Intersecting Lines :-__

**The lines or line segments which cross each other at any point are known as
intersecting lines.**

**Non-parallel lines are always intersecting lines.**

**(C) Perpendicular Lines -**

__Features Of Perpendicular Lines :-__

**If two lines intersect
each other at right angles, they are called perpendicular lines.**

**(3) Line Segment -**

**Features Of Line Segment -**

**- A portion of a line is called a line segment.**

**- A line segment has two end points.**

**- It has length and so it can be measured.**

**- In symbols line segment AB is written as**

** __ **

** AB**

**(4) Ray -**

__Features Of Ray -__

**- A ray is a straight path that goes on and on**

**in one direction.**

**- It has one end point.**

**Example: The rays of light from a torch.**