NCERT Class 6 Maths Basic Geometrical Ideas

Read and download NCERT Class 6 Maths Basic Geometrical Ideas in NCERT book for Class 6 Mathematics. You can download latest NCERT eBooks chapter wise in PDF format free from Studiestoday.com. This Mathematics textbook for Class 6 is designed by NCERT and is very useful for students. Please also refer to the NCERT solutions for Class 6 Mathematics to understand the answers of the exercise questions given at the end of this chapter

NCERT Book for Class 6 Mathematics Chapter 4 Basic Geometrical Ideas

Class 6 Mathematics students should refer to the following NCERT Book Chapter 4 Basic Geometrical Ideas in Class 6. This NCERT Book for Class 6 Mathematics will be very useful for exams and help you to score good marks

Chapter 4 Basic Geometrical Ideas NCERT Book Class 6

 

Basic Geometrical Ideas

4.1 Introduction

Geometry has a long and rich history. The term ‘Geometry’ is the English equivalent of the Greek word ‘Geometron’. ‘Geo’ means Earth and ‘metron’ means Measurement. According to historians, the geometrical ideas shaped up in ancient times, probably due to the need in art, architecture and measurement. These include occasions when the boundaries of cultivated lands had to be marked without giving room for complaints. Construction of magnificent palaces, temples, lakes, dams and cities, art and architecture propped up these ideas. Even today geometrical ideas are reflected in all forms of art, measurements, architecture, engineering, cloth designing etc. You observe and use different objects like boxes, tables, books, the tiffin box you carry to your school for lunch, the ball with which you play and so on. All such objects have different shapes. The ruler which you use, the pencil with which you write are straight. The pictures of a bangle, the one rupee coin or a ball appear round. Here, you will learn some interesting facts that will help you know more about the shapes around you.

4.2 Points

By a sharp tip of the pencil, mark a dot on the paper. Sharper the tip, thinner will be the dot. This almost invisible tiny dot will give you an idea of a point. A point determines a location.

These are some models for a point : If you mark three points on a paper, you would be required to distinguish them. For this they are denoted by a single capital letter like A,B,C. These points will be read as point A, point B and point C. Of course, the dots have to be invisibly thin.

4.3 A Line Segment

Fold a piece of paper and unfold it. Do you see a fold? This gives the idea of a line segment. It has two end points A and B. Take a thin thread. Hold its two ends and stretch it without a slack. It represents a line segment. The ends held by hands are the end points of the line segment.

The following are some models for a line segment :

Try to find more examples for line segments from your surroundings. Mark any two points A and B on a sheet of paper. Try to connect A to B by all possible routes. 

What is the shortest route from A to B?

This shortest join of point A to B (including A and B) shown here is a line segment. It is denoted by AB or BA . The points A and B are called the end points of the segment.

4.4 A Line

Imagine that the line segment from A to B (i.e. AB ) is extended beyond A in one direction and beyond B in the other direction without any end (see figure). You now get a model for a line.

Do you think you can draw a complete picture of a line? No. (Why?)

A line through two points A and B is written as AB It extends indefinitely in both directions. So it contains a countless number of points. (Think about this).

Two points are enough to fix a line. We say ‘two points determine a line’. 

The adjacent diagram (Fig 4.3) is that of a line PQ written as PQ Sometimes a line is denoted by a letter like l, m.

 

Please refer to attached file for NCERT Class 6 Maths Basic Geometrical Ideas

Mathematics NCERT Book Class 6 Chapter 4 Basic Geometrical Ideas

The above NCERT Books for Class 6 Mathematics Chapter 4 Basic Geometrical Ideas have been published by NCERT for latest academic session. The textbook by NCERT for Chapter 4 Basic Geometrical Ideas Mathematics Class 6 is being used by various schools and almost all education boards in India. Teachers have always recommended students to refer to Chapter 4 Basic Geometrical Ideas NCERT etextbooks as the exams for Class 6 Mathematics are always asked as per the syllabus defined in these ebooks. These Class 6 Chapter 4 Basic Geometrical Ideas book for Mathematics also includes collection of question. We have also provided NCERT solutions for Class 6 Mathematics which have been developed by teachers of StudiesToday.com after thorough review of the latest book and based on pattern of questions in upcoming exams for Class 6 students.

NCERT Book Class 6 Mathematics Chapter 4 Basic Geometrical Ideas

The latest NCERT book for Chapter 4 Basic Geometrical Ideas pdf have been published by NCERT based on the latest research done for each topic which has to be taught to students in all classes. The books for Class 6 Mathematics Chapter 4 Basic Geometrical Ideas are designed to enhance the overall understanding of students. All Class 6 NCERT textbooks have been written in an easy to understand language which will help to enhance the overall level of Class 6 students. 

Chapter 4 Basic Geometrical Ideas NCERT Book Class 6 Mathematics

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Class 6 Mathematics Chapter 4 Basic Geometrical Ideas NCERT Book

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Class 6 Chapter 4 Basic Geometrical Ideas NCERT Book Mathematics

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