Question

hi help i need your help please ​

Answer 1

Answer:

Ans12- if in the ones' place there are numbers like 2,3,7,8, the number is not a perfect square.

And 13-If in the ones' place even number is there then in the ones' place in the square of that number will be even and in odd vice versa.

For example in 1234 the units' place is 4 than in its square the unit place will be even.