The term "centroid" is of recent coinage (1814). It is used as a substitute for the older terms "center of gravity" and "center of mass" when the purely geometrical aspects of that point … See more

The centroid of a triangle is the intersection of the three medians of the triangle (each median connecting a vertex with the midpoint of the opposite side).
For other properties of a triangle's centroid, see below. See more

• Chebyshev center
• Circular mean
• Fréchet mean
• k-means algorithm
• List of centroids
• Medoid See more

1. ^ Protter & Morrey (1970, p. 520)
2. ^ Protter & Morrey (1970, p. 521)
3. ^ Philosophical Transactions of the Royal Society of London at Google Books
4. ^ Court, Nathan Altshiller (1960). "Notes on the centroid". The Mathematics Teacher. 53 (1): 33–35. See more

The geometric centroid of a convex object always lies in the object. A non-convex object might have a centroid that is outside the figure itself. The centroid of a ring or a bowl, … See more

Plumb line method
The centroid of a uniformly dense planar lamina, such as in figure (a) below, may be determined experimentally by using a plumbline and a pin to find the collocated center of mass of a thin body of uniform density having the … See more

• Weisstein, Eric W. "Geometric Centroid". MathWorld.
• Encyclopedia of Triangle Centers by Clark Kimberling. The centroid is indexed as X(2).
• Characteristic Property of Centroid at cut-the-knot See more