Given a rectangular parallelepiped length = 9cm, width = 3cm, height = 7cm. Find the surface area

Given a rectangular parallelepiped length = 9cm, width = 3cm, height = 7cm. Find the surface area of a parallelepiped; the sum of the lengths of all edges of the parallelepiped; the volume of the parallelepiped.

Given:

The figure is a rectangular parallelepiped.

The length is 9 centimeters.

The width is 3 centimeters.

The height is 7 centimeters.

Let’s calculate the sum of the lengths of all edges of the figure:

9 * 4 + 3 * 4 + 7 * 4 = 36 + 12 + 28 = 76 cm.

Let’s calculate the volume of the parallelepiped:

9 * 3 * 7 = 189 cm3.

Let’s calculate the area of one face:

9 * 3 = 27 cm2.

Let’s find the area of the second side:

3 * 7 = 21 cm2.

The third side will be equal to:

9 * 7 = 63 cm2.

Let’s find the area of the entire surface:

27 + 27 + 21 + 21 + 63 + 63 = 222 cm2.

Answer: 189 cm3, 76 cm, 222 cm2.