If the piece of sheet metal is a square, then 1600 cm2.
69 cubic centimeters squared
No,You are confusing volume measurements with area measurements.You could ask could 3- cubic centimeters of a liquid disperse to cover an area of 225 square centimeters. This then is a science question that deals with the properties of the liquid and the surface in question.
A 'metal filing ' is a tiny piece of metal that is rubbed off from a large piece by a file.
Metal
a thin pointed piece of metal is called a spike
The speed at which a given piece of metal rusts depends upon the type of metal it is - pure iron rusts much faster than most iron alloys - as well as exposure to water and other rust catalysts. Furthermore, the dimensions that you give, 3 by 0.5 by 3, don't mean anything unless you give units, such as, 3 inches, or 3 centimeters, or 3 feet, etc. The dimensionless number does not describe the size of a piece of metal.
a ruler
The conversion factor is 0.155: 20sq cm x 0.155 = 3.1 inches squared
A metal burr is a small, thin edge of metal that is created when a piece of metal is machined. For example: when a chef's knife is sharpened, a thin piece of metal remains on the edge of the knife.
its a piece of curved metal with another piece of metal going through it at the top
Burr or metal fragment
Volume cannot be measured in centimetres. Without the volume in appropriate units, the question makes no sense and so cannot be answered.