The edge of the cube is equal to 3 cm. How much will the volume of the cube increase if each of its edges increases by 2 cm?

To calculate the volume of a cube, it is necessary to multiply the height, length and width of the edge or to build the edge of the cube into a cube.

V = a ^ 3.

Let’s find the volume of a cube with an edge of 3 cm:

V = (3 cm) ^ 3 = 27 cm3.

Let’s find the volume of a cube with an edge increased by 2, that is, from 5 cm:

V = (5 cm) ^ 3 = 125 cm3.

Now let’s determine how much the volume of the cube has increased:

125 cm3 – 27 cm3 = 98 cm3

Answer: The volume of the cube with an increase in the length of the rib by 2 increased by 98 cm3.