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A circular wheel covers 176 m in 20 complete turns.
What is the radius (in cm) of the wheel? (Take π = $\frac{22}{7}$ )

Class 7Circumference of a CirclePerimeter and Area

A140 cm
B70 cm
C280 cm
D44 cm

Step-by-Step Solution

Distance per turn =

\frac{176}{20} = 8.8

m = circumference.

8.8 = 2 * \frac{22}{7} * r \Rightarrow r = \frac{8.8 \times 7}{44} = 1.4

m = 140 cm.

Answer: A) 140 cm

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