Random triples
| Subject | Object |
|---|---|
| gptkb:Spheres | 4πr^2 |
| gptkb:Ellipsoid | No simple closed formula |
| gptkb:Prisms | 2 × base area + perimeter × height |
| gptkb:hypersphere | A_n = (2 * π^{n/2} * r^{n-1}) / Γ(n/2) |
| gptkb:Cubus | 6a^2 |
| gptkb:Triaxial_ellipsoid | no simple closed form |
| gptkb:butter | A = 4π^2 R r |
| gptkb:Oloid | A = 4r² |
| gptkb:icosidodecahedron | (surface area = 5√3+3√25+10√3)a²) |
| gptkb:Torus | 4π^2 R r |
| gptkb:Sphere | 4πr^2 |