Answer:answer is below
Step-by-step explanation:
first is to find the triangle area.
(3*4)/2=6.
there are two of these triangles, so multiply by 2.
6*2=12
then find the three rectangles using the given side lengths.
4*11=44
5*11=55
3*11=33
Add them together
33+44+55+12=144
the surface area is 144.
