The perimeter of jonah's square backyard is 56 meters. what is the area of jonah's backyard?

First & foremost you have to find the sides of the square
Since it's a square, all of the sides are equal:
, so each side is 14m
Next you have to find the area of the square which is:
, so plug in each side and you should get:
, which is equal to:

Final 196m