Find the surface area of a rectangular parallelepiped if its measurements are 40 cm, 30 cm and 20 cm

The sides of a rectangular parallelepiped are simultaneously and are called side surfaces. To find the total surface area of a rectangular parallelepiped, you need to find the sum of the areas of all its side surfaces (sides).

A given parallelepiped has the following side surfaces:

Two surfaces with dimensions of 40 cm by 30 cm.

Two surfaces with dimensions of 40 cm by 20 cm.

And two surfaces measuring 30 cm by 20 cm.

Find the total surface area of the parallelepiped:

S = 40 cm * 30 cm * 2 + 40 cm * 20 cm * 2 + 30 cm * 20 cm * 2 = 5200 cm2.