Using the figures below, what is the perimeter of the 5th rectangle in the pattern?

Each side is increasing their length by 1 every time, and the length is always 1 greater than the height. That means the 5th rectangle will have a height of 5 and a length of 6, which would give it a perimiter of 22.
First: 1, 2
Second: 2, 3
Third: 3, 4
Fourth: 4, 5
Fifth: 5, 6
Perimeter = 5 + 5 + 6 + 6 = 22
Answer: 22