This may be wrong
Answer: 240.25 square units
Explanation:
You could take the perimeter already given, and turn this into a rectangle.
Since the left side is blank, this means you add 7 to thirteen to get the measurement of it. It would take a while to explain, and it seems like you want the answer soon.
You end up with a perimeter of 62.
If you get 2 sets of 2 values from this perimeter, you can create a width and height for your "rectangle"
You could turn this into a square even. Divide the perimeter by 4 to get a length of each side.
Each side of your rectangle (now square) is equal to 15.5 units.
Since the formula for area for a rectangle is width times height, multiply 15.5 by itself, and you get an area measure of 240.25 square units.