Alan needs to manufacture a circular metal plate with a perimeter of `10pi` centimeters. If the allowed error tolerance in the perimeter is `+-1` centimeter, how close to the ideal radius must he control the radius of the plate?

A. `1/(5pi)`
B. `1/(10pi)`
C. `2/pi`
D. `1/(2pi)`

Answer: D. `1/(2pi)`

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Alan Needs To Manufacture A Circular Metal Plate With A Perimeter Of 10pi Centimeters If The Allowed Error Tolerance In The Perimeter Is 1 Centimeter How Close class=