The perimeter of a rectangle is equal to P = 2b+2h where b=base and h=height. Here the base is 5 feet and the height is 30 inches. They are different measurements and must be in the same. Convert 5 ft into inches by multiplying 5*12 = 60 inches. Substitute b=60 and h=30.
P = 2*60 + 2*30
P = 120 + 60
P = 180 inches
The area of a rectangle is A = b*h. Substitute b=60 and h=30.
