The answer is the you need to know is 100
"<em>The distance around a circle"</em> = Circumference
Circumference = 3.14 * diameter
3900 * 3.14 = 12246
The circumference (distance around the crater) is equal to 12,246 feet
The answer is 9.42 for the ones wondernig what it was! I calculated it and took the exam and it was correct.
