Question

A racetrack is in the form of a ring whose inner circumference is 528 and the outer circumference is 616metre. find the width of the track ​

Answer 1

Step-by-step explanation:

to get the width we need to find the radius of outer circle and inner circle

circumference of outer circle = 2πr = 616

2 × 22/7 × r = 616

r = 616 × 7/22 × 1/2

r = 28 × 7 × 1/2

r = 14 × 7

r = 98 m

radius of outer circular track = 98m

circumference of inner circular track = 2πr = 528

2 × 22/7 × r = 528

r = 528 × 7/22 × 1/2

r = 24 × 7 × 1/2

r = 12 × 7

r = 84 m

radius of inner circular track = 84 m

width of track = outer radius - inner radius

= 98 - 84

= 14 m

therefore width of track is = 14 m

hope you get your answer