Question

a cycle wheel is 84 CM diameter how many revolutions will it make in one kilometre if this wheel makes 56 revolutions in 12 second in kilometre per hour​

Answer 1

Answer:

Step-by-step explanation:

r=42 cm

1 km =1000 m = 100000 cm

cf = 2 pi r

=2*22/7*42

=44*6  = 264 cm

= 100000/264

Answer 2

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