Question
The circumference of a wheel is 39.6 cm. What is the
radius of the wheel?Solution
ATQ,
We know the formula for circumference of a circle is 2 Γ Ο Γ r, where 'r' is the radius Let the radius of the wheel be 'r' cm ATQ: 2 Γ (22/7) Γ r = 39.6 Or, 44r = 39.6 Γ 7 Or, r = (39.6 Γ 7) Γ· 44 Or, r = 6.3 Therefore, radius of the wheel = 6.3 cm
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