Chapter 15 Probability notes class 9th mathematics

Probability Probability is the study of the uncertainty. The uncertainty of any doubtful situation is measured by means of Probability. Uses of Probability Probability is used in many fields like Mathematics, Physical Sciences, Commerce, Biological Sciences, Medical Sciences, Weather Forecasting,

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Chapter 14 Statistics notes class 9th mathematics

Statistics Statistics is the study of collection, organization, analysis and interpretation of data. Data A distinct piece of information in the form of fact or figures collected or represented for any specific purpose is called Data.  In Latin, it is known

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Chapter 10 Circles notes class 9th mathematics

Introduction to Circles There are lot many objects in our life which are round in shape. Few examples are the clock, dart board, cartwheel, ring, Vehicle wheel, Coins, etc. Circles Any closed shape with all points connected at equidistance from

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Chapter 9 Areas of Parallelograms and Triangles notes class 9th mathematics

Area of a Closed Shape The part of any plane which is enclosed with the closed figure is known as the Planar Region. And the measure of this region is called the Area of that figure. This is expressed in the form of

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Chapter 8 Quadrilaterals notes class 9th mathematics

Quadrilateral Any closed polygon with four sides, four angles and four vertices are called Quadrilateral. It could be regular or irregular. Angle Sum Property of a Quadrilateral The sum of the four angles of a quadrilateral is 360° If we draw

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Chapter 7 Traingle notes class 9th mathematics

Triangle A closed figure with three sides is called a Triangle. It has three vertex, sides and Angles. Types of Triangle 1. There are three types of triangles on the basis of the length of the sides. Name of Triangle Property

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Chapter 10 Law and Social Justice notes class 8th civics

To protect people from exploitation the government makes certain laws. These laws try to ensure that the unfair practices are kept at a minimum in the markets. To ensure that workers are not underpaid but are paid fairly, minimum wages

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chapter 9 public facilities notes class 8th civics

Public facilities are the facilities provided to the people by the government. They are important to sustain and lead a comfortable life. Water and the People of Chennai: Mr. Ramgopal lives in Anna Nagar, Chennai. This area looks lush and

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Chapter 8 Confronting Marginalisation Class notes class 8th civics

OBC (Other Backward Classes) The weaker sections of the society other than the Schedule Castes and Scheduled Tribes are called the Other Backward Classes (OBCs). The Kaka Kelkar Commission which gave its report for OBCs in 1953’s was accepted by

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Chapter 7 Understanding Marginalisation notes class 8th civics

MARGINALISED SECTIONS. A marginal group is one that does not belong or which dwells at the margin of two cultures and two societies and possesses a marginal mentality with its unresolved identity crises.” It is first seen as a distinctive

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