Calculate the radius of the circle whose length is 107 cm larger than its diameter

Result

r =  24.981 cm

Solution:

$2 \pi \cdot \ r = 107 + D \ \\ 2 \pi \cdot \ r = 107 + 2 \cdot \ r \ \\ \ \\ r = 107 / (2 \pi-2) = 107 / (2 \cdot \ 3.1416-2) \doteq 24.9814 = 24.981 \ \text { cm }$

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