Answer:
P = 54
Explanation:
I personally separate the two rectangles that are visible. The first rectangle is 9ft in length and 6ft in width. Second rectangle is 9 feet in width and 3 feet in height. (I got 9 by subtracting 6 from 15).
P=2(l+w)
Put the numbers in according to the formula,
~1st Rectangle~
P = 2(9+6)
P = 2(15)
P =30
~2nd Rectangle~
P = 2(3+9)
P= 2(12)
P=24
Then add the two perimeters of both rectangles,
24+30 = 54