Question 1:

Easy

During the holidays, João decided to build a small soccer field in the backyard of his house to play with his friends. The field is square-shaped and João used a 48-meter rope to delimit the entire perimeter of the field. However, in order to determine the amount of grass he will need to buy, João needs to know the exact area of the soccer field he built. How can he calculate this area knowing only the perimeter measurement?

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