After a 2-meter-long cylindrical steel is cut into three sections, the surface area increases by 9.6 square decimeters. What is the original volume of this steel?

After a 2-meter-long cylindrical steel is cut into three sections, the surface area increases by 9.6 square decimeters. What is the original volume of this steel?

The surface area increases the area of the two bottom surfaces of the cylinder
therefore
Base area of a cylinder
=9.6÷2
=4.8 (square decimeter)
=0.048 (M2)
The original volume of the steel
=0.048×2
=0.096 (M3)