Respuesta :

Answer:

81

Step-by-step explanation:

You have to find the square root of 81 and 111.

the square root of 81 is 9 and the square root of 111 is 10.53565375...

so 81 is a perfect square.

Answer:

81 is the answer

Step-by-step explanation:

If you multiply 9 x 9 your answer will be 81