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# A circular track has an inside circumference of 1320 m. If the width of the track is 7m, what is the outside circumference

Hint:

### Radius of outer circle is the sum of radius of inner circle and width of the track.

## The correct answer is: 1364 m

### It is given that Circumference of inner circle = 1320 m

2 r = 1320

2 × × r = 1320

r = 210 m

Radius of outer circle = Radius of inner circle +Width of track

= 210 + 7 = 217 m

Circumference of outer circle = 2 r

= 2 × × 217

= 1364 m

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