Find Perfect Square Roots

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Class - VIII - Maths:- INDEX

1. Squares & Square Roots
2. 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=12²;
169=13²;
225=15²;
256=16²

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 = 10² ;
1000 =31.62²;
10000 =100²;
100000=316.227²

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

(Cont..... to page 4 )

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