Saw a 6 decimeter long cuboid wood into three sections on average, the surface area increased 196 square centimeters, how many cubic centimeters is the volume of this wood?

Saw a 6 decimeter long cuboid wood into three sections on average, the surface area increased 196 square centimeters, how many cubic centimeters is the volume of this wood?

Bottom area = 196 △ 4 = 49 square centimeter
6dm = 60cm
Volume = 49 * 60 = 2940 CC