1. Let $ABCDEFGH$ be a rectangular prism, where $EF = 4$, $EH = 5$, and $EA = 6$. Find the volume of pyramid $CFAH$. https://latex.artofproblemsolving.com/0/a/3/0a3404805162de58ee7c86ac6b0e5d23327c0026.png 2.A rectangular prism has a total surface area of $56.$ Also, the sum of all the edges of the prism is $64.$ Find the length of the diagonal joining one corner of the prism to the opposite corner. (no pic)
