Question

TRY THESE
Find whether each of the following
numbers is a perfect square or not?
(i) 121
(ii) 55 (iii) 81
(iv) 49 (v) 69​

Answer 1

Answer:

121 is square root of 11

11 * 11 is 121

81 is square root of 9

9*9 is 81

49 is square root of 7

7*7 is 49

55 and 69 are not perfect square

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Answer 2

Answer:

{1} 11x11=121 yes.

{2}  5x11=55 no.

{3} 9x9= 81 yes.

{4} 7x7= 49 yes.

{5} 23x3=69 no.

Step-by-step explanation: