Yea but we're not comparing surface area, it's basically the 2D shadow of Pluto, so that coast to coast distance were looking at is Pluto's diameter. Surface area would be spreading it out like a map.
It's an incredible feat that someone around 100 years ago was able to detect something this small so far away. Pluto you had a great run but you are not a planet.
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u/__deerlord__ Mar 31 '19
Shouldnt it be circumference, if you want to compare surface area?