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Web Development : Starting from Concept, HTML, CSS, Web Site Develpment to Website Launching.

Written by: Sanjay Srivastava

B.Tech (Honours);IIT Kharagpur

PMP ; PMI USA

Class - VIII - Maths:- INDEX

1. Squares & Square Roots2. Cubes & Cube Roots

3. Exponents & Radicals

4. Profit Loss & Discount

5. Compound Interest

6. Algebraic Identities

7. Polynomials

8. Linear Equations

9. Parallel Lines

10. Types of Quadrilaterals

11. Construction of Quadrilaterals

12. Circles

13. Areas

14. Surface Areas

15. Volumes

16. Statistics

Class - VIII - Maths

Square is a two dimetional concept, having length and width equal.

In Fig-1-1 both the sides are having 2 unit and therefore it is Square of 2 i.e. 2*2=4 unit

In Fig-1-2 both the sides are having 3 unit and therefore it is Square of 3 i.e. 3*3=9 unit

Now What is Square Root: This is reverse calculation to find out units in each direction

Fig 1-1 is having 4 units, and 2 unit is each direction. Therefore the Square root of 4 is 2. Similerly the square root of 9 is 3.

Now consider Fig-1-3. It is having one side 2 unit and other side 3 units i.e. total 6 uits. Now if you arrange it it any fashion, you will not get perfect square.

To find out if square Root, lets brake two units i smaller parts. Not it is square of unit side.

Therefore the square root of 6 is 2.449 (this will be discussed in detail in future)

(Cont..... to page 2 )

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