Posted by Rick on Tuesday, April 6, 2010 at 12:19pm.
If you know the area, take the √ of that area to get the length of the sides,
e.g. area = 500 cm^2
side = √500 = 22.36
now you want the length of the diagonal, which is the hypotenuse.
h^2 = side^2 + side^2
h^2 = 2(side^2)
e.g.
h^2 = 22.36^2 + 22.36^2 = 1000
h = √1000 = 31.6227
The middle of that square is 1/2 way down the hypotenuse or the diagonal, which would be 15.8 for my example.
The above is the explanation, here is the shortcut :
double your area
take square root of that
take 1/2 of that answer
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