A) 28m
B) 40m
C) 42m
D) 44m
Correct Answer: A
Solution :
Let the radius of the inner most circle be r. \[\therefore \,\,\,\,\,2\pi r=176\] \[2\times \frac{22}{7}\times r=176\] \[r=\frac{176\times 7}{2\times 22}\] \[r\text{ }=\text{ }28m\]
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