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if xy=18.5, then 2x+2y= diameter
if we assume x and y are equal, then
x^2=18.5, so
4x= diameter
so, we figure out the equation x^2=18.5...
x = sq. root of 18.5
x= 4.3
so the diameter would be 4 times 4.3, or 17.2 feet
if x does not equal y, then we would to know the relationship between x and y before we could solve the equation.
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How many yards are in 185 square feet?
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The hypotenuse of 21 does not yield an integral value for the second leg. The legs are 16 and the square root of 185, which is about 13.6 The area of the triangle is 1/2 (16 x 13.6) = about 108.8 212 = 162 + x2 x2 = 185 x = 13.6
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