A square wood is 2 meters long, and its cross section is a square with side length of 1 decimeter. Its surface area is [] square decimeter, and its volume is [] cubic decimeter

A square wood is 2 meters long, and its cross section is a square with side length of 1 decimeter. Its surface area is [] square decimeter, and its volume is [] cubic decimeter

2 m = 20 decimeters
Surface area: 2 × (1 × 20 + 20 × 1 + 1 × 1) = 82 (square decimeter)
Volume: 20 × 1 × 1 = 20 (cubic decimeter)