A rectangle is shown with labeled sides of 3 ft. and 2 ft.
Kelly plans to decorate this table for a birthday party. She would like to buy red trim for the perimeter. The trim costs $1.00 a foot. How much will Kelly spend on the trim?
A. $20.00
B. $10.00
C. $6.00
D. $5.00
The perimeter of the rectangle is 2(3 ft) + 2(2 ft) = 6 ft + 4 ft = 10 ft. Therefore, Kelly will need 10 ft of red trim. Since the trim costs $1.00 per foot, she will spend 10 x $1.00 = $10.00.
Answer: B. $10.00