# The volume of a cube-shaped metal tank is 8m3. How long is the rib of this tank?

July 26, 2021 | education

| A cube is a polyhedron with all edges the same.

The volume of the cube is determined by the formula:

V = a ^ 3, where a is the length of the edge of the cube.

In our case, V = 8 m3.

So 8 = a ^ 3.

Solve the equation and find the length of the edge of the tank.

a = 3√8;

a = 2.

Answer: The length of the rib of the tank is 2 m.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.