2) The diagram is a net for a pyramid with a square bottom with
highest point above a corner of the square base. The outside
solid lines are cut lines, the interior dotted lines are fold lines. If the side length of the square is 3 units, and the height of the pyramid, which is also its vertical edge, is 4 units, then what is the length of its longest edge C? Give an exact answer or express to the nearest hundredth.
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