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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
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Let inner radius be r metres. Then, 2πr = 440 ; r = 440×744= 70 m.
Radius of outer circle = (70 + 14) m = 84 m
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