Find the volume of a rectangular parallelepiped whose measurements are equal: 3 m, 5 m, 8 m.

1. To solve this problem, we need knowledge of the following formulas:

The volume of a rectangular parallelepiped is equal to the product of its length, width and height.

V = a * b * c;

2. Now let’s find the volume of a rectangular parallelepiped for this, substitute the quantities known to us, such as a = 3 cm, b = 5 cm, c = 8 cm, into the formula for the volume of a rectangular parallelepiped, then we get:

V = a * b * c = 3 cm * 5 cm * 8 cm = 15 cm ^ 2 * 8 cm = 120 cm ^ 3.

Answer: The volume of a rectangular parallelepiped is 120 cm ^ 3.