Radius of the circle

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

Result

r =  24.981 cm

Solution:

2π⋅ r=107+D 2π⋅ r=107+2⋅ r  r=107/(2π−2)=107/(2⋅ 3.1416−2)≐24.9814≐24.981 cm2 \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 \doteq 24.981 \ \text{cm}

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