Pretty sure it’s d(all of the above)
The answer is 1 :) . i hope i helped ❤️.
Circle = pi*r^2
Diameter = 80, so radius = 40
Circle = pi*40^2 = pi*1600 is approximately 5026.55 yards
True, because if you kept on dividing it, even when microscopic, you would keep dividing until you had an infinite amount.