Find the lengths of the diagonals of a rectangular parallelepiped by its three dimensions: 8cm, 9cm and 12cm.
| April 14, 2021 | education
The length l of the diagonal of a rectangular parallelepiped with sides a, b and c can be determined by the formula
l = √ (a ^ 2 + b ^ 2 + c ^ 2).
The length of the diagonal of a given rectangular parallelepiped is
l = √ (8 ^ 2 + 9 ^ 2 + 12 ^ 2) = √ (289) = 17 cm.
P. S. The specified formula can be derived through the Pythagorean theorem.
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.
