Calculate the volume of a rectangular parallelepiped whose length is 80 dm

Calculate the volume of a rectangular parallelepiped whose length is 80 dm and the width is 20% of the length and 40% of the height.

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

It is known that the length of a rectangular parallelepiped is 80 dm. Let’s express the length in meters. Since 1 dm = 0.1 m, then 80 dm = 80 * 0.1 m = 8 m.

Find the width of the rectangular parallelepiped. 20% of 8 m is 0.2 * 8 = 1.6 m.

The width is 40% of the height, so let’s find the height. To do this, divide the width value by 0.4.

1.6: 0.4 = 4 m.

Let’s calculate the volume of a rectangular parallelepiped.

8 * 1.6 * 4 = 51.2 m3.

Answer: 51.2 m3.