After a 1-meter-long cylindrical steel is cut into two sections, the surface area increases by 6.28 square decimeters, and the original volume of the steel is______ Cubic meter

After a 1-meter-long cylindrical steel is cut into two sections, the surface area increases by 6.28 square decimeters, and the original volume of the steel is______ Cubic meter

6.28 square decimeter = 0.0628 square meter, (0.0628 △ 2) × 1, = 0.0314 × 1, = 0.0314 (cubic meter); answer: the original volume of this steel is 0.0314 cubic meter, so the answer is: 0.0314