You need to type out the entire question in the ask a question box. However - the surface area of a hexagonal prism will be 6 times the surface area of any one side face plus the areas of the two ends. The side faces each have an area of L x H, where L is the length of one edge of the hexagon and H is the height of the prism. The area of each hexagonal end piece is


Area = \frac {3 \sqrt 3 } 2 L^2


Can you take it from here?