You measure a room and make a diagram shown below with the room measurements. Use the greatest possible error to find the minimum possible area.

___________
| |
| |
| |
| | 10 ft
| |
|__________|
6 ft

a. 9.5 ft * 5.5 ft. = 52.25 sq. ft.
c. 10.5 ft. * 6.5 ft. = 68.25 sq. ft.
b. 9 ft. * 6 ft. = 60 sq. ft.
d. 9.5 ft. * 6.5 ft. = 61.75 sq. ft.

Question

You measure a room and make a diagram shown below with the room measurements. Use the greatest possible error to find the minimum possible area. 

 ___________
|                  |
|                  |
|                  |
|                  | 10 ft
|                  |
|__________|
         6 ft

a. 9.5 ft * 5.5 ft. = 52.25 sq. ft.
c. 10.5 ft. * 6.5 ft. = 68.25 sq. ft. 
b. 9 ft. * 6 ft. = 60 sq. ft.
d. 9.5 ft. * 6.5 ft. = 61.75 sq. ft.

anonymous · Answer

well assuming the error here is plus or minus 0.5 ft on each measurement, then the smallest possible area would be when the error on each measurement is minus 0.5 ft. Alternately, since all of the listed answer choices are within this assumed error, you could just pick the one listing the smallest area...