So basically with this question I am kinda stuck and don't really know where to begin as the question is really confusing me. Help would be much appreciated and I would totally forever be thankful to whoever helps me out. It would be really nice of you to show working
https://drive.google.com/open?id=0B9fc3R9B2yEGWTdaMkhNS0xjNW8&authuser=0

Question

So basically with this question I am kinda stuck and don't really know where to begin as the question is really confusing me. Help would be much appreciated and I would totally forever be thankful to whoever helps me out. It would be really nice of you to show working 
https://drive.google.com/open?id=0B9fc3R9B2yEGWTdaMkhNS0xjNW8&authuser=0

anonymous · Answer

i guess its an inverted triangular prism..is it?

anonymous · Answer

for surface area...1/2 {2 rt(a^2-x^2)}*d
and for volume use the formula of prism(as a think it is)