Answer:
and
.
Explanation:
Since, we have number
with help of which we have to find a square.
If we divide 9 by 9 then we will obtain 1 which is itself a square.
That is,
Now, If we multiply 9 by itself we obtain 81, which is the square of 9.
That is,

Note: We can also make other squares by using number 9.