Dimensions of rug a is 4ft x 5ft and dimensions of rug b is 48in x 60in

area of rug a = 20 square feet

perimeter of rug a = 18 feet

area of rug b = 2880 square inches / 20 square feet

perimeter of rug b = 216 inches / 18 feet

Step-by-step explanation:

5x4=20

5+5+4+4=18

48x60=2880

48+48+60+60=210

2880/12=20

210/12=18

you divide the answers that are in inches by 12 because there are 12 inches in a foot and you need the answers to be in the same measurement