Length of the aquarium 90 cm width 40 cm height 60 cm, how many liters of water is required to fill the aquarium.

Given:

a = 90 cm;

b = 40 cm;

s = 60 cm;

V =? cm³;

An aquarium is a three-dimensional polyhedron that consists of six faces. There is a parallelogram at its base. Each face is a rectangle. We conclude that the aquarium is a rectangular parallelepiped and its volume is calculated by the formula: V = a * b * c, where a is the length, b is the width, and c is the height.

1) V = a * b * c = 90 * 40 * 60 = 216000 (cm³)

1 liter = 1 cubic decimeter;

2) 216000 cm³ = 21600 dm³ = 21600 liters

Answer: 21,600 liters of water will be required to fill the aquarium.