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- The inner circumference of a circular race track, 14 m wide, is 440 m.
Question 1:
The inner circumference of a circular race track, 14 m wide, is 440 m. Find radius of the outer circle A. 44
B. 22
C. 33
D. 84
Feedback Let inner radius be r metres. Then, 2πr = 440 ; r = 440×744= 70 m.
Radius of outer circle = (70 + 14) m = 84 m
Radius of outer circle = (70 + 14) m = 84 m
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