example: if a square is 3 inches on all sides you use the formula 'A squared+B squared=C squared' and plug in 3 for variables A and B.
3'2+3'2=c'2 so it equals 9+9=c2 so 18=c2 so square root of 18 is in between 4 and 5 but closer to 4 so its about 4.2 inches
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It is the side of an isolateral figure.
It is the total length "outline" of a figure. For example, the total length of the outline of a square, its perimeter, is the total length of the four sides of the square.
a square, altough to get it to look like a "diamond" you would have to look at it diagonally.
Is the 60 inches measured diagonally from corner to corner (as is a TV screen)? If the 60 inches is the length, then what is the width? Length times by the width will give you the square measurement of the table.
use a measuring tape