Nobbs Points
Given a Triangle 
, construct the Contact Triangle 
. Then the Nobbs points are thethree points 
, 
, and 
from which and are Perspective,as illustrated above. The Nobbs points are Collinear and fall along the Gergonne Line.
References
Oldknow, A. ``The Euler-Gergonne-Soddy Triangle of a Triangle.'' Amer. Math. Monthly 103, 319-329, 1996.
- Coin Tossing
- Colatitude
- Colinear
- Collatz Problem
- Collinear
- Super-3 Number
- Superabundant Number
- Super Catalan Number
- Superegg
- Superellipse
- Superfactorial
- Supergraph
- Supernormal
- Superperfect Number
- Superposition Principle
- Super-Poulet Number
- Superregular Graph
- Superscript
- Superset
- Supplementary Angle
- Support
- Support Function
- Supremum
- Supremum Limit
- Surd