# The volume of a rectangular parallelepiped is calculated by the formula V = abc, where a, b

The volume of a rectangular parallelepiped is calculated by the formula V = abc, where a, b and c are the lengths of its three edges going out from one vertex. Using this formula, find a if V = 70, b = 5 and c = 3.5.

To solve this problem, it is necessary to express one of its edges a from the formula for the volume of a rectangular parallelepiped. Let’s do it:

a = V / bc,

that is, you need to divide the volume by the lengths of the remaining ribs.

Substitute the given values into the resulting formula and find a:

a = 70 / (5 * 3.5) = 4.

Answer: the edge a of a rectangular parallelepiped is 4. 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.