There is a cuboid wood with a cross-sectional area of 25 square decimeters and a length of 2 meters. How many cubic meters is this wood?

There is a cuboid wood with a cross-sectional area of 25 square decimeters and a length of 2 meters. How many cubic meters is this wood?

25 square decimeter = 0.25 square meter
Volume = 0.25 × 2 = 0.5m3

Take a 2-meter cuboid wood, the cross-sectional area is 16 square decimeters, how many cubic meters is its area
How many cubic meters is the cross-sectional area of a 2-meter-long cuboid wood 16 square decimeters

Area should be volume
16 square decimeter = 0.16 square meter
Volume: 0.16 × 2 = 0.32 M3

1. A 2-meter-long cuboid timber has a cross-sectional area of 16 square decimeters. How many cubic meters is its volume? 2. The construction site needs to dig a 50 meter long cuboid timber

V=SL=2x0.16=0.32m^3