Question

mountain bike wheel has diameter of 40 inches , in how many turns will the bike be able to cover 1 km?

note :
circumference of circle = pi ((radius)^2)
radius = diameter/2
Ms. Sue
The formula is C = pi * d

40 inches = 101.6 cm = 1.016 m

C = 3.14 * 1.016

c = 3.19024 m

1000 / 3.19024 = ________ turns


K THANKS , BUT WHY YOU divide 1000 /3.19024
Ms. Sue
You need to know how many turns the wheel made in 1 kilometer

1 km = 1000 m

Thanks alot for you :)
Ms. Sue
You are very welcome.

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