If the dimensions of the cuboid are also in cm then (16*4*8)/(2*2*2) = 64 cubes
length *width*height=area of cuboid
width = volume/(length*height)
By dividing length times width into its given volume
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For a cuboid it gives its volume.
length *width*height=area of cuboid
In the case of a rectangular cuboid, I would say that the volume is simply DEFINED to be length x width x height. The volume of other, more complicated shapes, can then be derived, based on this basic definition. But you do need to have a starting point, i.e., "How is volume even defined in the first place?"Just to show that this definition makes sense, think of a rectangular cuboid as having integer values for length, width, and height. In that case, you can divide it into unit cubes (cubes of side length 1), and it is easy to see (basically, by counting the unit cubes) that the number of unit cubes will be length x width x height - IN THIS SPECIAL CASE.
width = volume/(length*height)
By dividing length times width into its given volume
Volume = Length * Width * Height
For a cuboid it gives its volume.
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To find the length of a cuboid without knowing its volume, you can use the dimensions of the cuboid if they are available. A cuboid is defined by its length, width, and height. If you have the measurements of the width and height, you can express the length in terms of those dimensions if you have additional relationships or constraints (such as surface area). Otherwise, you would need at least one dimension or another property of the cuboid to determine the length.
All you need to do is times width by length by height 2x5x3 = 30cm^3
The volume of a rectangular prism (a shape like box)
You multiply the length by the width by the height to get the volume.
Length x width x height equals volume.* * * * *But only if the object in question is a cuboid (rectangular prism). Length*Width*Height for a sphere, for example, does not equal its volume.