The top view and side view of a 40-foot-long swimming pool are shown in the figure below. All dimensions given are in feet. -60
40
top view
20
12
side view
The top view shows the top rectangular surface of the pool and the surrounding rectangular patio. All 4 walls of the pool are
vertical and perpendicular to the top surface. The side view shows a cross section along the length of the pool. All cross
sections parallel to the side view are congruent. The shallow end has a constant depth of 4 ft. The deep end has a constant
depth of 9 ft. A rectangular surface connects the shallow and deep ends.
What is the area, in square feet, of the patio surrounding the pool?
500
600
Oa
Ob
Ос
Od
Oe
900
1,100
1,350
O