The length of the edge of the cube is 9 cm. Find the total area of all the faces of the cube.
| April 28, 2021 | education
The cube contains 6 faces, each of which is a square of area S = a² = 9² = 81. The total surface area of the cube is S = 6 * a² = 6 * 81 = 486 cm².
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.
