Square AreaFor Squares with a Known SideResult:9


Side (a)  units  

decimals  
A square with a side length of 3 units has an area of 9 square units.
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The area of a square with a known side length can calculated using the following formula:
A = a^2
The symbol ^2 means to square the item preceding it, in this case the side length (a). To square the side length multiply it by itself: a * a.
Below is an example of how to find the area of a square with the side length of 3.