The lengths and widths of four rectangles are shown below. Which rectangle has a perimeter 20 of
ft?
A
length = 101010 ft, width = 101010 ft
B
length = 999 ft, width = 111ft
C
length = 777 ft, width = 222 ft
D
length = 555 ft, width = 222 ft
To find the perimeter of a rectangle, we use the formula:
Perimeter = 2 * (length + width)
Let's calculate the perimeter for each option:
A. Perimeter = 2 * (101010 ft + 101010 ft) = 2 * 202020 ft = 404040 ft
B. Perimeter = 2 * (999 ft + 111 ft) = 2 * 1110 ft = 2220 ft
C. Perimeter = 2 * (777 ft + 222 ft) = 2 * 999 ft = 1998 ft
D. Perimeter = 2 * (555 ft + 222 ft) = 2 * 777 ft = 1554 ft
Only option B has a perimeter of 20 ft.