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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
## Find Perfect Square Roots (Page 3/10)

(Continued from page 2 )

Question - Type 2 - Which are perfect square of even number or odd number.

144, 169, 225, 256

Answer - 2- Take the square root of numbers.

144=12^{2};

169=13^{2};

225=15^{2};

256=16^{2}

Now examine the numbers. Since 12 & 16 are even no, therefore__144 & 256 are perfect square of even number__ and 13 & 15 are odd number, therefore __169 & 225 are perfect square
of odd number__.

Question - Type 3 - Which of the following number are perfect square -

100, 1000, 10000, 100000

Answer - 3- The number having even number of '0' are perfect square.;

100__= 10__^{2} ;

1000 =31.62^{2};

10000__=100__^{2};

100000=316.227^{2}

therefore__ 100 (having two 0 ) & 10000 (having four 0) are perfect square.__

(Cont..... to page 4 )

© funandhobby.com (* Find Perfect Square Roots*)

Question - Type 2 - Which are perfect square of even number or odd number.

144, 169, 225, 256

Answer - 2- Take the square root of numbers.

144=12

169=13

225=15

256=16

Now examine the numbers. Since 12 & 16 are even no, therefore

Question - Type 3 - Which of the following number are perfect square -

100, 1000, 10000, 100000

Answer - 3- The number having even number of '0' are perfect square.;

100

1000 =31.62

10000

100000=316.227

therefore

(Cont..... to page 4 )

© funandhobby.com (