Posted by Nicole on .
What is the surface area of a rectangular prism with the numbers 15 26 9 12?

6th grade geometry 
PsyDAG,
What do these numbers represent? The edges of a rectangular prism would only have three values.
Let W = width, L = length, and H = height.
Surface area = 2(LW) + 2(LH) +2(WH)