I assume that you meant circumference instead of circumstance as circumstance is not a math term.
Given that the circumference is 24,901, determine the diameter.
So, when we find the circumference of a circle. We multiply the diameter by pi (3.14).
However, if we want to find the diameter, we can reverse it by dividing by pi to get the diameter.
So, it would become:
D = C/pi
D = 24901/3.14
D = 7930.25
Thus, the diameter is 7,930.25 (insert units here).