The area of a disk as a function of radius is given by A r2 How close must r be to 2 0 cm to guarantee an area within 0 5 cm2 of 4 Find the accuracy of input necessary to achieve the desired output accuracy

Question: The area of a disk as a function of radius is given by A = r2. How close must r be to 2.0 cm to

The area of a disk as a function of radius is given by A = πr2. How close must r be to 2.0 cm to guarantee an area within 0.5 cm2 of 4π?
Find the accuracy of input necessary to achieve the desired output accuracy.

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