Question

State true or false:

The number mentioned below is a perfect square.

89722

• A. True
• B. False

Answer 1

The correct option is B False

The square of the numbers must end with any of the digits $0$, $1$, $4$, $5$, $6$ or $9$.
Example:-
$1^2=1$
${12}^2=144$
${13}^2=139$
$5^2=25$

Also, a perfect square has an even number of zeros at the end. Example :- $100,400,640000$.

Here, the number is $89722$.

It ends with $2$. Therefore it is not a perfect square.