Area of Spherical Caps (light) Hahnemühle German Etching Print

A disk of positive radius \(r\) in the Euclidean plane has area \(\pi r^2\). The same formula holds for a "disk" on the surface of a sphere if the radius is measured chordally in space! If your first thought is That can't be right, you're far from alone.

All our prints are available on a range of matt and lustre finishes, each carefully profiled for fantastically accurate and consistent reproductions using giclée printing techniques.

• Hahnemühle German Etching (310gsm)
• A premium fine art paper with a velvety surface perfect for archival quality reproductions.