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