A) \[\text{26 cm}\]
B) \[\text{13 cm}\]
C) \[\text{15 cm}\]
D) \[\text{18 cm}\]
Correct Answer: B
Solution :
| [b] Radius of wheel \[=\frac{91}{2}cm\] |
| Angle between two adjoining spokes, |
| \[\theta =\frac{360{}^\circ }{22}\] |
| \[\therefore \] Length of the \[arc=\frac{\theta }{360{}^\circ }\times 2\pi r\] |
| \[=\frac{360{}^\circ }{360{}^\circ \times 22}\times 2\times \frac{22}{7}\times \frac{91}{2}=13cm\] |
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