Need Help?

Get in touch with us


Classification of Angles and Lines

Sep 12, 2022

Parallel Lines 

Look carefully and identify if the railroad tracks intersect each other. 

Parallel Lines Classification of Angles and Lines

The railroad tracks do not intersect each other at any point. The lines that lie in the same plane, do not intersect each other, and are always the same distance apart are called parallel lines

parallel lines

Parallel Postulate 

Consider a line m and plot a point P outside the line. We can draw only one line parallel to the given line passing through the point. 

Parallel Postulate 

So, m′ is parallel to m and passes through P.

Skew Lines 

The lines that do not intersect each other but lie in different planes are called Skew lines. 

Skew Lines 

Perpendicular Lines 

The lines which intersect each other at 90° are called perpendicular lines. 

Perpendicular Lines

Perpendicular Postulate 

Consider a line m and plot a point P outside the line. 

We can draw only one line perpendicular to the given line passing through the point. 

Concept Map

Concept Map: 


Related topics

Composite Figures – Area and Volume

A composite figure is made up of simple geometric shapes. It is a 2-dimensional figure of basic two-dimensional shapes such as squares, triangles, rectangles, circles, etc. There are various shapes whose areas are different from one another. Everything has an area they occupy, from the laptop to your book. To understand the dynamics of composite […]

special right triangles_01

Special Right Triangles: Types, Formulas, with Solved Examples.

Learn all about special right triangles- their types, formulas, and examples explained in detail for a better understanding. What are the shortcut ratios for the side lengths of special right triangles 30 60 90 and 45 45 90? How are these ratios related to the Pythagorean theorem?  Right Angle Triangles A triangle with a ninety-degree […]

simplify algebraic expressions

Ways to Simplify Algebraic Expressions

Simplify algebraic expressions in Mathematics is a collection of various numeric expressions that multiple philosophers and historians have brought down. Talking of algebra, this branch of mathematics deals with the oldest concepts of mathematical sciences, geometry, and number theory. It is one of the earliest branches in the history of mathematics. The study of mathematical […]

solve right triangles

How to Solve Right Triangles?

In this article, we’ll learn about how to Solve Right Triangles. But first, learn about the Triangles.  Triangles are made up of three line segments. These three segments meet to form three angles. The lengths of the sides and sizes of the angles are related to one another. If you know the size (length) of […]


Other topics