Answer: The length is 24.5 feet.
Step-by-step explanation:
The formula for the perimeter of a rectangle is P = 2L + 2W.
Plug in the values you know
87 = 2L + 2(19)
Solve for L
87 = 2L + 38
subtract 38 from both sides
49 = 2L
divide both sides by 2
L = 24.5
