You can put this solution on YOUR website! You need to know how to use the formulas for a circle. The one we care about is the formula for the perimeter:
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Let P = perimeter of the circle
Let r = the radius of the circle
Let d = the diameter of the circle, where d = 2r
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P = 2 pi * r or pi * d
P = 200
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200 = pi * d
d = 200/pi
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d = ~63.67 feet
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cheers,
Lee
