The side area of a cylinder is 37.68 square decimeters, the height is 3 decimeters, and the circumference of the bottom surface of the cylinder is______ Decimeter

The side area of a cylinder is 37.68 square decimeters, the height is 3 decimeters, and the circumference of the bottom surface of the cylinder is______ Decimeter

37.68 △ 3 = 12.56 (decimeter); answer: the circumference of the bottom surface of the cylinder is 12.56 decimeter