I am having trouble finding the minimum perimeter of a rectangle with 3 enclosed sides. I am given the area of the rectangle which is 180m^2. I have no clue how to solve this but here is my attempt

Isolate w, b/c the length of the rectangle would be twice the width when enclosing 3 sides

A=lw

180=lw

180=lwl l

w=180l

sub into the formula for area of a rectangle

P=2(l+w)

P=2(l+180)

l

i dont know how to solve such an equation my knowledge of order of operations