Question

Which of the following is not a perfect square ?
1
252
400
529
121​

Answer 1

Answer:

252

Step-by-step explanation:

perfect square is a square of natural number

in other way, if square root of a number is not a natural number it's not a perfect square

√1 = 1

√252 = 15.8

√400 = 20

√529 = 23

√121 = 11

All above are perfect square expect 252