Question

$question$
A race track is in the form of a ring whose inner circumference is 220 m. and outer circumference is 440 m. find the width of the track.

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Answer 1

Answer:

$Añswer$

let, inner radius=r outer radius=R

inner circumference-2nr 220=2*22/7*r

r-35m

outer circumference=2πR

440= 2TR

R=70m

width of road=R-r

width of road-70-35

width of road-35m

Answer 2

Answer: 35
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