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# What Is the Density Triangle?

**The density triangle, sometimes called the mass-volume-density triangle, is a graphic aid that is intended to make calculations of any of the three variables easy once the other two are known.** To use the density triangle, one variable, representing the value to be calculated, must be covered. This gives the relationship between the other two variables and serves as a reminder of the operation that determines the unknown value.

The density triangle is laid out in three sections with mass in the top area. The area beneath mass is divided between density and volume. If density and volume are known, covering the mass section leaves the two bottom sections, one next to the other, indicating that density must be multiplied with volume to yield mass. This operation works in reverse, with volume multiplied by density.

To determine either density or volume, the undefined variable must be covered. This leaves mass and the other defined factor, either density or volume. In either case, mass is on top, which indicates that the unknown variable, density for example, must be the dividend of mass over volume, or mass divided by volume. Again, this also works for mass divided by density to yield the volume.

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Q:
## What Is the Metric Unit for Density?

A: The metric unit for density is kilogram per meter cubed, and the smaller unit is grams per centimeter cubed. Density is defined as the ratio of mass per un... Full Answer >Filed Under: -
Q:
## What Is the Formula for Relative Density?

A: The formula for relative density is the quotient of the mass of the substance divided by the mass of the reference substance. The relative density can also... Full Answer >Filed Under: -
Q:
## What Is the Formula for Finding Density?

A: The formula to find an object's density is its mass divided by volume. Density is not possible to directly measure. To find the density of an object, it is... Full Answer >Filed Under: -
Q:
## What Is the Bulk Density of Sand?

A: When dry, sand has a bulk density of about 80 to 100 pounds per cubic foot, while when damp, it is about 100. The bulk density of sand varies according to ... Full Answer >Filed Under: