The surface area of the cube is 24 cm 2. Find the length of the edge of the cube and the volume.
January 13, 2021 | education
| First, we find the area of one face of the cube. The cube has 6 faces with the same area.
We divide the area of the entire surface of the cube by the number of faces.
24 cm2 / 6 = 4 cm2.
The area of a square can be found using the formula:
S = a ^ 2.
From it we find the length of the edge of the cube:
a = √ S = √ 4 cm2 = 2 cm.
We find the volume of the cube by the formula:
V = a ^ 3.
V = (2 cm) ^ 3 = 8 cm3.
Answer: The length of the edge of a cube is 2 centimeters, the volume is 8 cubic centimeters.
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.