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Radii, Chord, Diameter and Circumference of the Circle

The distance ...

Question

The distance covered by a wheel when it completes 20 revolutions is 110 m. Find the diameter of the wheel.

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Solution

Number of revolutions =

20 =

C =

C = 5.5 m = 550 cm

C = πd

550 = × d

d =

d = 175 cm = 1.75 m

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