Question

which of the following cannot be the unit digit of a perfect square number option are .6.1.9
8.​

Answer 1

Answer:

8

Step-by-step explanation:

perfect square numbers are

1^2=1

2^2=4

3^2=9

4^2=16

5^2=25

6^2=36

7^2=49

8^2=64

9^2=81

10^2=100.... so in the unit digit 8 cannot be here for perfect square numbers