It actually doesn't matter. someone must calculate the area of each sector, the rectangular like shape that is cut by the rings/latitudes and the radii. and do it for the oceans too then we will all figure out weather SA or NA is near the middle.

or just use Colorado: it aligns with 37-41 N and 102 and 109 west. so the arc length is 4^{o}

dividing 20,000km radius by the 180 degrees of latitude gives us 111.1(rep) per degree, so given the north pole at the center,

Colorado must be between 49 and 53 degrees, so it is between 5444.4 km and 5888.9km. Therfore the integral for are yields

?rdrd?

with the region being 0<?<4 and 5444.4<r<5888.9

the result is 175,806 km^{2}

If we did it with antarctic in the center the region in

0<?<4 and 15444.4<r<15888.9

the result is 486,166km

and then you realize that the earth is not flat because it should be 270,000km^{2}

time to an hero after a wasted life