## Real Numbers

## Irrational Number

A number is called irrational if it ...

## Polynomials

An expression which consists variables and coefficient and non-negative integer components involv...

## Pair of Linear Equations in Two Variables

An expression in the form of `ax+by+c=0` where `a, b` and `c` are real numbers, and `a` and `b` a...

## Quadratic Equation

Question(1). Check whether the following are quadratic equations:

## Arithmetic Progression

A series of numbers in which next term is obtained by adding a fixed number to the preceding term...

## Introduction to Trigonometry

Trigonometry is the study of relationships between the sides and angles of a triangle.

## Some Applications of Trigonometry

Question: 1. A circus artist is climbing a 20 m long rope, which is tightly stretc...

## Circle

Circle is a collection of all points in a plane which are at a constant distance (radius) from a ...

## Areas Related to Circles

Unless stated otherwise, use π = 22/7

Question (1) The radii of two cir...

## Surface Areas & Volume

## (1) Cuboid

Volume of cuboid `=(lxxbxxh)` cubic units