The diameter of a car wheel is 80cm. How much distance will it cover in 15
revolutions?
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In 15 revolutions it covers a distance of 3771.42857143 cm.
Explanation:
The diameter of the car is 80 cm.
∴ Radius of the car = (80/2) cm
= 40 cm.
∴ Circumference of the wheel = 2πr
= 2×(22/7)×40
= 251.428571429 cm.
The distance covered by the wheel in 1 revolution = the circumference of the wheel = 251.428571429 cm
∴ The distance covered by the wheel in 15 revolutions _
(251.428571429 × 15) cm
= 3771.42857143 cm
∴ In 15 revolutions it covers a distance of 3771.42857143 cm.
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