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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
## What is a Cube Root (Page 3/7)

(Contiued from page 2 )

In a**Perfect Cube** the all the numbers of factors should have pair of three.

Question - Type 2 - Is 200 is a perfect cube ?

Answer - 2- Make the factors

200=__2*2*2__*__5*5__

Since 5*5 are only two pair, therefore__200 is not a perfect cube__.

Question - Type 3 - With what number 200 is to be multiplied to make it perfect cube

Answer - 3- Make the factors

200=__2*2*2__*__5*5__

Since 5*5 are only two pair,**therefore 200 must be multiplied with 5 to make it a perfect cube.**

i.e. 200*5=1000=10*10*10

Now this is a perfect cube and the cube root is 10.

(Cont..... to page 4 )

© funandhobby.com (* What is a Cube Root*)

In a

Question - Type 2 - Is 200 is a perfect cube ?

Answer - 2- Make the factors

200=

Since 5*5 are only two pair, therefore

Question - Type 3 - With what number 200 is to be multiplied to make it perfect cube

Answer - 3- Make the factors

200=

Since 5*5 are only two pair,

i.e. 200*5=1000=10*10*10

Now this is a perfect cube and the cube root is 10.

(Cont..... to page 4 )

© funandhobby.com (