The diameter of a wheel is 56cm . How much will it go in 20 revolutions
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Step-by-step explanation:
Diameter of circular wheel =2r=56cm
Circumference =2πr=π(2r)=56πcm
1 revolution of wheel covers distance equal to its circumference =56πcm
Total distance covered by wheel =1.1km=1.1∗1000m=1100m=1100∗100cm=110000cm
Total Distance = Number of revolutions ∗ 1 revolution distance
Number of revolutions =
1revolutiondistance
Total Distance
=
56π
110000
=625.25≈625
The number of revolutions made by a bicycle wheel 56 cm in diameter in covering a distance of 1.1 km is 625.
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