Question

a carriage wheel makes 20,000 revolution in going over a distance of 15.7 kilometre find the radius of the wheel to taking π=3.14​

Answer 1

Answer:

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Step-by-step explanation:

pi = 3.14

4.5 km = 4500 m

circumference = 2(pi)r

1500(2(pi)(r)) = 4500 m

3000(3.14)r = 4500

r = 4500/[(3000)(3.14)]

r = 0.47771 m

(0.47771 m)(100 cm/m) = 47.771 cm