The area of any prism is base*height.
The main trick in this problem is determining which face is the base, since this is a triangular prism. We need to calculate the area of the triangle base.
11*8/2=44
Now we just need to multiply by the height.(note height is b this case because the prism is actually printed with the base facing towards you.
44*5=220
Done!
So answer choice B 220.
