What is the approximate size of earths diameter?
Well, let’s see… you want me to use the value for diameter above, OK. (4) * (3476) = 13,904 kilometers would be the strictly mathematical resultant. For a rough check, as I recall, the circumference of the Earth stands at pretty close to 25,000 miles, a shade under, maybe, but OK for a round figure. From Solid Geometry, where C = pi*d, C/pi = 25,000/3.14, or 8,000 miles, give or take. mi/k = roughly 9/5 so 8,000 mi runs out a something around 13,000k in round figures I think we’re close enough for layman’ purposes, but this is strictly off the top of my head.
