Triangles

Demonstrations 1 - 40 of 495

Altitude of a Tetrahedron Given Its EdgesNew this week | Tiling a Sphere with Special Right TrianglesNew this month | Tiling with Spherical Triangles of Area PiNew this month | Menelaus' and Ceva's Theorem for Spherical TriangleNew this month | A Visual Proof of Thales's Intercept TheoremUpdated this month |

Two Equidecomposable TrianglesNew this month | Spherical Right TrianglesNew this month | Four Theorems on Spherical TrianglesNew this month | ||

Supplementary Solid Angles for TrihedronNew this month | Euclid's Formula and Properties of Pythagorean TriplesNew this month | |||

Spherical Law of SinesNew this month | Spherical Law of CosinesNew this month | |||