Question

Which of the following numbers are perfect square?
1)121
2)136
3)256
4)321
5)600​

Answer 1

Answer:

121 is a square of 11

as 11 ×11 = 121

option a is correct

Answer 2

Here,

121 is the perfect square and it is the square of the 11.

256 is also the perfect square and it is the square of 16