The surface area of a 2m long cuboid wood increases by 40dm2 after it is cut into five sections. What is the volume of this wood cubic decimeter?

The surface area of a 2m long cuboid wood increases by 40dm2 after it is cut into five sections. What is the volume of this wood cubic decimeter?


2 meters = 20 decimeters, 40 △ 8 × 20, = 5 × 20, = 100 (cubic decimeters). A: the volume of this wood is 100 cubic decimeters



There is a 2-meter-long cuboid wood. After it is cut into three sections, the surface area increases by 60 square decimeters. How many cubic decimeters is the original volume of the wood?


2 meters = 20 decimeters, 60 △ 4 × 20, = 15 × 20, = 300 (cubic decimeters). A: the volume of this wood is 300 cubic decimeters



The surface area of a 2m long cuboid wood increases by 40dm2 after it is cut into five sections. What is the volume of this wood cubic decimeter?


2 meters = 20 decimeters, 40 △ 8 × 20, = 5 × 20, = 100 (cubic decimeters). A: the volume of this wood is 100 cubic decimeters



The surface area of a 2m long cuboid wood increases by 40dm2 after it is cut into five sections. What is the volume of this wood cubic decimeter?


2 meters = 20 decimeters, 40 △ 8 × 20, = 5 × 20, = 100 (cubic decimeters). A: the volume of this wood is 100 cubic decimeters