Each side of the square is 7 times square root 14 and its perimeter is 28 times square root 14 m

The length of one side is the square root of the area = √686

The perimeter is 4 times the length of one side

 = 4√686 = 4√(2•7³) = 4•7√(2•7) = 28√14

Ans: 28√14

:-

L = √686 m

L = 7√14 m

P = 28√14 m

If the area is 686 m², each side will be:

√686

686 can be factored as:

2 * 7 * 7 * 7

So we can rewrite the square root as:

√(2 * 7 * 7 * 7)

= √(7 * 7) * √(2 * 7)

= 7 * √14

= 7√14

But you have *4* sides in the perimeter, to take the length of one side and multiply it by 4:

4 * 7√14

= 28√14

Answer:

28√14 m