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NCERT Class 8 Mathematics Chapter 05 Squares and Square Roots Digital Edition
For Class 8 Mathematics, this chapter in NCERT Book Class 8 Maths Squares and Square Roots provides a detailed overview of important concepts. We highly recommend using this text alongside the NCERT Solutions for Class 8 Mathematics to learn the exercise questions provided at the end of the chapter.
Chapter 05 Squares and Square Roots NCERT Book Class Class 8 PDF (2025-26)
6.1 Introduction
You know that the area of a square = side × side (where ‘side’ means ‘the length of a side’). Study the following table.
What is special about the numbers 4, 9, 25, 64 and other such numbers?
Since, 4 can be expressed as 2 × 2 = 22, 9 can be expressed as 3 × 3 = 32, all such umbers can be expressed as the product of the number with itself.
Such numbers like 1, 4, 9, 16, 25, ... are known as square numbers.
In general, if a natural number m can be expressed as n2, where n is also a natural number, then m is a square number. Is 32 a square number?
We know that 52 = 25 and 62 = 36. If 32 is a square number, it must be the square of a natural number between 5 and 6. But there is no natural number between 5 and 6.
Therefore 32 is not a square number. Consider the following numbers and their squares.
Please refer to attached file for NCERT Class 8 Maths Squares and Square Roots
| NCERT Book Class 8 Maths Answers and Solutions |
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NCERT Book Class 8 Mathematics Chapter 05 Squares and Square Roots
Download the official NCERT Textbook for Class 8 Mathematics Chapter 05 Squares and Square Roots, updated for the latest academic session. These e-books are the main textbook used by major education boards across India. All teachers and subject experts recommend the Chapter 05 Squares and Square Roots NCERT e-textbook because exam papers for Class 8 are strictly based on the syllabus specified in these books. You can download the complete chapter in PDF format from here.
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