Edward C. answered 02/19/15
Tutor
5.0
(438)
Caltech Grad for math tutoring: Algebra through Calculus
The distance around the crater is 9415. If the crater is in the shape of a circle then this distance is the circumference of the circle. The circumference C and diameter D of a circle are related by the formula
C = PI * D
If you plug in 9415 for C and 22/7 for PI and solve for D you get
9415 = (22/7) * D
D = (7/22) * 9415 ~ 2995.7