The diameter of the earth at the equator is 800 miles calculate the circumference of the earth at the equator Using 4(8/9)²
nathanshields | Certified Educator
The circumference of a circle is its diameter multiplied by pi.
You're using pi = 4(8/9)^2
So the circumference would be 800*4*(8/9)^2 = 2528 miles
But since the diameter is rounded to the hundreds, 2500 would be a good answer.