Answer:
The perimeter of rectangle is

Explanation:
Let
x------> the length of rectangle
y----> the width of rectangle
we know that
The area of the constructed figure is equal to


so
-----> equation A
-----> equation B
substitute equation B in equation A





using a graphing tool to resolve the quadratic equation
the solution is

Find the value of x

Find the perimeter of rectangle
The perimeter of rectangle is equal to

