Answer:
The perimeter is 18.
Explanation:
The first side is 5 units, the second is 5 units, the third is 2 units, the fourth is 2 units, the fifth is 2 units, the sixth is 1 unit, the seventh is 1 unit, and the eighth is 2 units. 5+5+2+2+2+1+1+2=18. When add all of them together you get 18.