Answer:
820m
Step-by-step explanation:
The formula for the area of a square is a^2
Therefore we get for one side of the square field:
a = [tex]\sqrt{42025}[/tex] m = 205 m
The field's perimeter is computed by adding up all sides of the field.
Since the field is a square it is computed by 4*a (a being the length of the side):
perimeter = 4 * a = 4 * 205m = 820m