Calculate the volume of a parallelepiped with measurements of 5 dm, 12 dm, 15 dm. Compare it to 1 cubic meter.

By the condition of the problem, a rectangular parallelepiped is given.

It is known that the length, width and height of this parallelepiped are 5, 12 and 15 decimeters, respectively.

Let’s calculate what its volume is equal to:

V = a * b * c.

V = 5 * 12 * 15 = 900 dm³.

Let’s express the given volume in m³.

900 dm³ = 0.9 m³, (900/1000).

Let’s compare the volume of a parallelepiped with 1 m³.

0.9 m³ <1 m³.

1 – 0.9 = 0.1 m³.

0.9 / 1 = 0.9 = 90%.

Answer: the volume of a parallelepiped is 0.9 m³, which is 0.1 m³ less than 1 m³, or 90% of 1 m³.