Question

WHICH IS NOT A PERFACT SQUARE
256
154
1600
625​

Answer 1

Step-by-step explanation:

154

it is not a perfect square

Answer 2

Answer:

154

Step-by-step explanation:

$\sqrt{256} = 16$

$\sqrt{1600} = 40$

$\sqrt{625} = 25$

but,

$\sqrt{154} = 12.409....$