Bicycle wheel

After driving 157 m bicycle wheel rotates 100 times. What is the radius of the wheel in cm?

Correct result:

r =  25 cm


o=157/100=157100=1 57100=1.57 R=o/(2π)=1.57/(2 3.1416)0.2499 r=R 100=0.2499 100=25 cm

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