Q11 of 119 Page 62

What least number must be subtracted from 178 to make it a perfect square?

For making 178 a perfect square we have to subtract 9 from it as:

178 – 9 = 169

And we know that,

= 13

Therefore, option (C) is correct

Which of the following is the square of an even number?

What least number must be added to 521 to make it a perfect square?

Fill in the blanks:

(i) 1+3 +5 +7+9 +11+13 =(…….)²

(ii) = ……….

(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.