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The radius of a bicycle wheel is 25.5cm.How many complete revolutions must it take to cover a distance of at least 800m?​

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Answer:

500 revolutions.

Explanation:

The circumference of the wheel is 2 π r

= 2 *π * 25.5

= 51π cm.

800 m = 80000 cm. so

Number of revolutions = 80000 / 51π

= 499.3.

So to cover the 800 m the wheel must do at least 500 revolutions.

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