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There are various formulas for finding the volume of three dimensional objects:
square: a3 (where a equals the side length)
rectangle: abc (where a, b, and c equal the three side lengths)
pyramid: (1/3)bh (where b equals base, and h equals height)
sphere: (4/3)pi.r3 (where r equals radius)
plus many more!
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What does it mean to find the area of a shape?
To find the the area of a shape is to find the space that is enclosed within a 2D object. Do not mix it up with volume, which is the space enclosed within a 3D object.
What is the fomula for the volume of a rectangle?
The volume of a rectangle (or any other 2D object) is always zero. An object needs to be 3D to have volume.
Is volume only for 3D shapes?
The volume of anything is always the area of the base of the object times the height. Therefore, to find the volume the object must have a height, which makes volume work with all 3D shapes. If one is looking at a 2D shape, then there is no height so a volume cannot be calculated (note: areas may be found of 2D shapes).
What is the Formula for finding density of an 3D object?
Density of an object is defined as (mass)/(volume).
Amount of space taken up by a 3d object?
It's volume.
