Need explanation :
The inner circumference of a circular track is 44m less than the outer circumference. If the outer circumference is 396 m then find the width of the track.
Answer is 7
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Answered by
7
inner circumference=C=x
so, outer circumference=C'=x+44=396
x=396-44=352
x=2πr=352
r=352/2π
by calculating,
r=56m
C'=2πR=396
R=396/2π
by calculating,
R=63m
width of the track=63-56=7m
Answered by
47
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