*Answer*= 31
*Explanation*= Some of the sides aren't given so you must look at the other side and put them in.
3+3 for the top and bottom
4+4 for both of the higher sides
2+2 for the first side of the sticking out square
0.5+0.5 for the sides of the sticking out square
2+2 for the last side of the sticking out square
4+4 for both of the lower sides
Add them all up= 3+3+4+4+2+2+0.5+0.5+2+2+4+4
= 31
Hope that helps!
