Linked from
The 17 pages that link to Surface area, each with the reason it gives.
Oblate spheroidRelated: Its value depends on the spheroid’s equatorial and polar radii.
Unit sphereRelated: The unit sphere's surface area is 4π, a basic result of spherical geometry.
Solid geometryRelated: It measures the size of a solid's exterior boundary.
TowelRelated: Terry loops expose more fiber area to water and air than a flat weave does.