Length of the arc

What is the length of the arc of a circle k (S, r=68mm), which belongs to a central angle of 78°?

Result

x =  92.572 mm

Solution:

r=68 mm o=2π r=2 3.1416 68427.2566 mm  x=78360 o=78360 427.256692.572392.572 mmr=68 \ \text{mm} \ \\ o=2 \pi \cdot \ r=2 \cdot \ 3.1416 \cdot \ 68 \doteq 427.2566 \ \text{mm} \ \\ \ \\ x=\dfrac{ 78 }{ 360 } \cdot \ o=\dfrac{ 78 }{ 360 } \cdot \ 427.2566 \doteq 92.5723 \doteq 92.572 \ \text{mm}



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