SOLUTION: The area of a circular region is numerically equal to four times the circumference of the circle. Find the length of a radius of the circle.
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Question 824747: The area of a circular region is numerically equal to four times the circumference of the circle. Find the length of a radius of the circle. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The area of a circular region is numerically equal to four times the circumference of the circle. Find the length of a radius of the circle.
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Equation:
pi*r^2 = 4(2pi*r)
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r^2 = 8r
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r(r-8) = 0
Positive solution:
radius = 8
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Cheers,
Stan H.
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