Answer:
560 meters is your perimeter
Explanation:
Note that the total area of the square is 19600, and that the Area of square = side x side
19600 = s²
Solve for s. Root both sides
√(s²) = √(19600)
s = √19600
s = 140
One side of the square is 140.
-------------------------------------------------------------------------------------------
Note that there are 4 sides in a square. Multiply 140 with 4
140 x 4 = 560
Answer: 560
~