1. A cuboid, 4 decimeters long, 0.4 decimeters more than wide, the same height and width, its volume is * * cubic decimeters 2. The 6060 bricks, 20 cm long, 10 cm wide and 5 cm high, are neatly stacked together. The volume of this pile of bricks is * * M & sup3

1. A cuboid, 4 decimeters long, 0.4 decimeters more than wide, the same height and width, its volume is * * cubic decimeters 2. The 6060 bricks, 20 cm long, 10 cm wide and 5 cm high, are neatly stacked together. The volume of this pile of bricks is * * M & sup3

(1)
Length = 4, width = 4-0.4 = 3.6, height = 3.6
Volume = 4 × 3.6 × 3.6 = 51.84 cubic decimeter
(2)
20cm=0.3m
10cm=0.1m
5cm=0.05m
Total volume = volume of each brick × number of bricks
=0.2 × 0.1 × 0.05 × 6060 = 6.06m3