The document discusses surface area formulas for prisms and cylinders. It defines surface area as the sum of the areas of all surfaces that enclose the solid. For prisms, surface area is calculated as the perimeter of the base multiplied by the height, plus twice the area of the base. For cylinders, surface area is the circumference of the circular base multiplied by the height, plus twice the area of the circular base. Examples are given to demonstrate how to apply these formulas.