Incorrect
Explanation
The perimeter of a rectangle is twice the sum of its length: perimeter = 2(length + width). The perimeter is 18 feet.
Solve this puzzle
1 is 3, 3 is 5, 5 is 4, 4 is perfect. Why?
5 = 4 4 has 4 letters 3 = 4 4 is a prime number