the diameter of a cycle wheel is 77 cm find the number of rotation to covers the distance of 2.42 km
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Answered by
12
d = 77 cm
r = 77/2 cm
circference = distance covered in 1 rotation = 2πr = 2×22/7×77/2 = 242 cm
242cm = 1 rotation
242000 cm = 1000 rotations
Ans ) 1000 rotations
Hope this helps... plsss make it the brainliest
r = 77/2 cm
circference = distance covered in 1 rotation = 2πr = 2×22/7×77/2 = 242 cm
242cm = 1 rotation
242000 cm = 1000 rotations
Ans ) 1000 rotations
Hope this helps... plsss make it the brainliest
sonusandeepful:
How to242000cm=1000rotation
Answered by
5
The cycle wheel would take 1000 rotations to cover the given distance.
The diameter of the wheel is 77cm.
Therefore its radius is 77/2=38.5 cm.
The formula for the circumference of a circle is 2*pi*radius of the circle.
=>Cicumference of the wheel is 242cm or 0.000242km.
Therefore, the number of revolutions taken to cover 2.42km is 0.000242/2.42=1000.
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