Question

racetrack is in the form of a ring whose inner circumference is 478 and the outer circumference is 500 . Find the width of the track.
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Answer 1

Answer:

Let the radius of inner track =r

2πr=352

2×722×r=352

r=56

let the radius of outer track =R

2πR=396

2×722×R=396

R=63

width of track= radius of outer track−radius of inner track

=63−56=7m.

Step-by-step explanation:

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Answer 2

Answer:

7 m

Step-by-step explanation:

Let the radius of inner track =r

2πr=352

2×

7

22

×r=352

r=56

let the radius of outer track =R

2πR=396

2×

7

22

×R=396

R=63

width of track= radius of outer track−radius of inner track

=63−56=7m.