# The edges of the rectangular parallelepiped are 3cm 4cm 5cm Find the total surface area of the rectangular

August 24, 2021 | education

| **The edges of the rectangular parallelepiped are 3cm 4cm 5cm Find the total surface area of the rectangular parallelepiped.**

Given:

The first edge of a rectangular parallelepiped is 3 cm.

The length of the second edge of the parallelepiped is 4 cm.

The length of the third edge of the figure is 5 cm.

Find the area of the first face of the rectangular parallelepiped:

3 * 4 = 12 cm2.

Let’s calculate the area of the second face of the parallelepiped:

3 * 5 = 15 cm2.

Let’s find the area of the third facet of the figure:

4 * 5 = 20 cm2.

Let’s calculate the sum of the areas of all faces of a rectangular parallelepiped:

12 * 2 + 15 * 2 + 20 * 2 = 24 + 30 + 40 = 94 cm2.

Answer: 94 cm2.