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## BASICS OF QUADRILATERALS | Study

Pre-Requisires Test & Enrich Quadrilaterals | Speed Notes Notes For Quick Recap Quadrilateral Any closed polygon with four sides, four angles and four vertices are called Quadrilateral. It could be regular or irregular. (Sroll down to continute …) Study Tools Audio, Visual & Digital Content Revision Notes – CBSE 09 Math – Quadrilaterals Angle Sum…

## LINES AND ANGLES | Study

Pre-Requisires Test & Enrich Lines And Angles | Speed Notes Notes For Quick Recap Basic Terms And Definitions 1. Point – A Point is that which has no component. It is represented by a dot. A point is shown with a capital letter. Examples: A, B, C ….. Colinear And Non-colinear Points 5. Collinear points:…

## QUADRILATERALS | Study

Pre-Requisires Test & Enrich Quadrilaterals | Speed Notes Notes For Quick Recap Quadrilateral Any closed polygon with four sides, four angles and four vertices are called Quadrilateral. It could be regular or irregular. (Sroll down to continute …) Study Tools Audio, Visual & Digital Content Revision Notes – CBSE 09 Math – Quadrilaterals Angle Sum…

## HERON’S FORMULA | Study

Pre-Requisires Test & Enrich Heron’s Formula | Speed Notes Notes For Quick Recap Perimeter Perimeter is defined as the outside boundary of any closed shape. To calculate the perimeter of a given shape we need to add all the sides of the shape. Example: The perimeter of a rectangle is the sum of its all…

## INTRODUCTION TO EUCLID’S GEOMETRY | Study

Pre-Requisires Test & Enrich Speed Notes Notes For Quick Recap Introduction to Euclid Geometry The necessity of geometry had been felt from ancient times in different parts of the world. The practical problems faced by people of ancient civilization had developed this branch of mathematics. Let us cite few examples. With floods in the river,…

## NUMBER SYSTEMS | Study

Pre – Requisites Test & Enrich Speed Notes Notes For Quick Coverage Introduction to Natural Numbers Non-negative counting numbers excluding zero are called Natural Numbers. N = 1, 2, 3, 4, 5, ………. Whole Numbers All natural numbers including zero are called Whole Numbers. W = 0, 1, 2, 3, 4, 5, ……………. (Scroll down…

## LINEAR EQUATIONS IN TWO VARIABLES | Study

Pre-Requisires Test & Enrich Linear Equations in Two Variables | Speed Notes Notes For Quick Recap Linear Equations The equation of a straight line is the linear equation. It could be in one variable or two variables. Linear Equation in One Variable The equation with one variable in it is known as a Linear Equation…

## COORDINATE GEOMETRY | Study

Pre-Requisires Test & Enrich Coordinate Geometry: Cartesian Plane | Speed Notes Notes For Quick Recap Cartesian System A plane formed by two number lines, one horizontal and the other vertical, such that they intersect each other at their zeroes, and then they form a Cartesian Plane. Scroll Down To Continue … Study Tools Audio, Visual…

## POLYNOMIALS | Study

Pre-Requisires Test & Enrich Speed Notes Notes For Quick Recap Study Tools Audio, Visual & Digital Content Revision Notes on Polynomials Polynomial A polynomial is an algebraic expression that includes constants, variables, and exponents. It is the expression in which the variables have only positive integral powers. Example 1. 4×3 + 3×2 + x +3…

## CIRCLES | Study

Pre-Requisires Test & Enrich Circles | Speed Notes Notes For Quick Recap Introduction to Circles There are many objects in our life which are round in shape. A few examples are the clock, dart board, cartwheel, ring, Vehicle wheel, Coins, etc. (Scroll down to continue …) Study Tools Audio, Visual & Digital Content Circles Interior…

## TRIANGLES | Study

Pre-Requisires Test & Enrich Triangles | Speed Notes Notes For Quick Recap Similar Geometric Figures: Two geometric figures which are the same in shape, such that one is simply a copy of the other on a smaller scale or a larger scale, are called similar geometric figures. Two geometric figures are said to be similar…

## STATISTICS | Study

Pre-Requisires Test & Enrich Speed Notes Notes For Quick Recap Study Tools Audio, Visual & Digital Content Statistics Statistics is the study of collection, organization, analysis and interpretation of data. Data Data is a distinct piece of information in the form of fact or figures collected or represented for any specific purpose. The word data…

## SURFACE AREAS AND VOLUMES | Study

Pre-Requisires Test & Enrich Surface Areas and Volumes | Speed Notes Notes For Quick Recap Plane figure The figures which we can be drawn on a flat surface or that lie on a plane are called Plane Figure. Example – Circle, Square, Rectangle etc. Solid figures The 3D shapes which occupy some space are called…

## Class 9 | Mathematics | All In One

Free Educational Tools Course Features Personalised Education Pre-Requisites Test & Enrich Study Tools Audio Visual & Digital Content Testing Tools Assign, Assess & Analyse Interactive Tools Ask, Answer & Discuss Speed Notes Notes For Quick Revision E-book Chapterwise Textbook Assignment Tools Testing Tools To Assign, Assess & Analyse NCERT Solutions Solved Exercises NCERT Exemplar HOTS…