A machinist is required to manufacture a circular metal disk with area 2000 cm^2.
(a) What radius produces such a disk? (Round your answer to four decimal places.)
Answer; 25.23132522 <----- This answer is correct
(b) If the machinist is allowed an error tolerance of ±10 cm2 in the area of the disk, how close to the ideal radius in part (a) must the machinist control the radius? (Round your answers to four decimal places.)
Answer; 25.16816786 cm < r < 25.29432488 cm
What value of ε is given?
Answer;10 cm^2 <----- This answer is correct
What is the corresponding value of δ? (Round your answer to four decimal places.)
0.0632 cm <----- This answer is incorrect
I am confused about how 0.0632 is incorrect I did 25.23132522 − 25.16816786 and rounded the answer. I look at sample problems and the way I solved it is the way it was solved.