# Find the mass of 1m (3 alloys, if the ingot of this alloy, which has the shape of a rectangular parallelepiped

January 13, 2021 | education

| **Find the mass of 1m (3 alloys, if the ingot of this alloy, which has the shape of a rectangular parallelepiped with dimensions of 2.9 dm, 15 cm and 0.8 m, has a mass of 281.88 kg.**

1. First, let’s translate all measurements of a piece of alloy into meters, we get:

2.9 dm = 0.29 m.

15 cm = 0.15 m.

0.8 m = 0.8 m.

2.Now let’s find out the volume of a piece of alloy, as the product of its three dimensions, we get:

0.29 * 0.15 * 0.8 = 0.0348 m3

3. Since the mass of this piece of alloy is known, then we find out the mass of 1 m3 of the alloy by dividing the weight of the piece of alloy by its volume:

281.88 kg / 0.0348 m3 = 8100 kg / m3.

Answer: as a result, we got that 1 m3 of alloy weighs 8100 kg.

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