The inner circumference of a circular race track, 14 m wide is 440 m . Then the radius of the outer circle is ?

The inner circumference of a circular race track, 14 m wide is 440 m .

1.	The inner circumference of a circular race track, 14 m wide is 440 m . Then the radius of the outer circle is ?
A.	70 m
B.	56 m
C.	77 m
D.	84 m
Answer» E.

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The inner circumference of a circular race track, 14 m wide is 440 m . Then the radius of the outer circle is ?

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