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22,000 miles

Step-by-step explanation:

Circumference of a circle: 2πr (r is the radius)

Substitute the length of the radius given, which is 3500. Also, substitute the approximate value of π, which is 3.14.

Circumference = 2 * 3.14 * 3500

Circumference = 21980

This rounds to about 22,000, so the answer is 22,000 miles.

I hope this helps! Feel free to ask any questions!

22,000 miles

Step-by-step explanation:

Circumference of circle = 2πr

2 × 22/7 × 3500

22/7 × 3500 = 11000

2 × 11000 = 22000

The circumference would be 22,000 miles.

OR

Circumference of circle = 2πr

2 × 3.14 × 3500

6.28 × 3500 = 21,980

21980 to the nearest 1000 is 22000

The circumference would be approximately 22,000 miles.

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