After the side of a cylinder with a base circumference of 6.28 decimeters is expanded, a rectangle with a width of 2 decimeters is obtained. The side area of the cylinder is () square decimeters, and the volume is () square decimeters

After the side of a cylinder with a base circumference of 6.28 decimeters is expanded, a rectangle with a width of 2 decimeters is obtained. The side area of the cylinder is () square decimeters, and the volume is () square decimeters

S = 6.28x2 = 12.56 square decimeter