Question

The unit digit in the square of the number 209 is ___.
a) 0
b) 1
c)9
d) 2

Answer 1

Answer:

A number having 2,3,7or 8 at unit's place is never a perfect square.

Step-by-step explanation:

8 is the answer but not in the option

Answer 2

Step-by-step explanation:

तुस्जशफ़ज़्जगजयोगउफलडुओरुओफओ