Area of the sphere by integral
http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/AreasphereintMD.html
[url=http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/AreasphereintMD.html]http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/AreasphereintMD.html[/url]
Information: Area of the sphere by integral