A 4-meter-long cylindrical timber is cut into two equal sections, and the surface area increases by 4.8 square decimeters. What is the original volume of the log

A 4-meter-long cylindrical timber is cut into two equal sections, and the surface area increases by 4.8 square decimeters. What is the original volume of the log

Two bottom areas are added, one is 4.8 △ 2 = 2.4 (square decimeter)
0.048÷2×4=0.096(m³)