A wheel covers a distance of 44metres after making 10 revolutions . What is the radius of the wheel in meters
A: 0.7 m
B: 1.4 m
C: 2.2 m
D: 7.0 m
Given distance = 44m
Revolutions = 10
We use the formulae;
Circumference = distance/revolutions
C = 44/10
We can now use the circumference to get the radius of the wheel
Circumference =4.4m
Circumference = 2πr
4.4 = 2 × 22/7 × r
4.4 = 44/7 r
Multiply both sides by the reciprocal of 22/7;
R = 4.4 * 7/44
R = 0.7 m
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