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A Perfect Square Never Ends with 2,3,7 or 8 as Last Digit

the method of...

Question

the method of finding non-perfect square numbers between 40 square and 41 square is 2x40 but, 40 square = 1600 and,41 square = 1681 so 1681-1600 is 81, but 2x40 is 80

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Similar questions

Q. Find the square root of

1681

by first principle (vargamula method)

Q. Find perfect square numbers between

80

90

.

Q. Fill in the blanks.
(i) 1 + 3 + 5 + 7 + 9 + 11 + 13 = (.........)².
(ii)

\sqrt{1681} = . . . . . . . . .

(iii) The smallest square number exactly divisible by 2, 4, 6 is .........
(iv) A given number is a perfect square having n digits, where n is odd. Then, its square root will have ......... digits.

Q. Find the square root of

1600

.

Q. Find the side of a square whose area is 1600

m^{2}

.

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A Perfect Square Never Ends with 2,3,7 or 8 as Last Digit

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