Answer:
Step-by-step explanation:
The square area is
A = x²
A side of square is
X
Then, we have:
x² = 57
x = [tex]\sqrt[2]{57}[/tex]
x = 7,54 aproximately - just the positive root is aceppted.
I don't know the values of that table, because you didn't gave. But if they are all natural numbers, it would be betwen 7 and 8.