It depends what 3D figure you are trying to determine the volume for. There are different volume formulas for different figures.
For example, the volume formula for a cube is V=s3 where s is the side.
Volume formula for a rectangular prism is V=length x width x height.
For a cyclinder it's V= Pi x radius2 x height
For a cone it's V=(Pi x radius2 x height) / 3
Most volume formulas are contained on what may be called a reference sheet inside almost every math textbook.
--Algebra 2 Teacher
The two ways are:empirical: measure ittheoretical: calculate it (using formulae).
The two ways to measure the density of an object are by using its mass and volume. You can calculate density by dividing the object's mass by its volume, or by measuring the displacement of water when the object is submerged in it.
A circle is two dimensional, it has area but not volume.
You do not. As two-dimensional shapes geometric squares have area and no volume whatsoever.
You can use either your eyes, calculate the volume or practically pour liquids in a given container to find out which one has a bigger volume.
Two,three
mass and volume
Calculate the volume of one sweet. Calculate the volume of the jar and then divide the volume of the jar by the volume of a sweet.
Length will equal the volume divided by the other two numbers.
The volume of a rectangle is always 0, as a rectangle is a two-dimensional object.
Density is mass per volume, so you need to know mass and volume.
A rectangle is a two dimensional object and as such does not have a volume. Instead it has a surface area, which is defined to be the length times the width.