SOLUTION: my office is 12 feet by 8 feet, while lena's office is 18 feet by 12 feet. a) what is the ratio of the perimeter of lena's office to my office b) what is the ratio of the area of

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: my office is 12 feet by 8 feet, while lena's office is 18 feet by 12 feet. a) what is the ratio of the perimeter of lena's office to my office b) what is the ratio of the area of      Log On


   



Question 170311: my office is 12 feet by 8 feet, while lena's office is 18 feet by 12 feet.
a) what is the ratio of the perimeter of lena's office to my office
b) what is the ratio of the area of lena's office to my office?

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
2*12+2*8=24+16=40 ft. for your perimeter.
2*18+2*12=36+24=60 ft. for Lena's perimeter.
60/40=1.5 is the ratio of the perimeters.
12*8=96 ft^2
18*12=216 ft^2
216/96=2.25 is the ratio of the area.