Reference Terms
from Wikipedia, the free encyclopedia


A triangle is one of the basic shapes of geometry: a polygon with three vertices and three sides which are straight line segments.

Any three non-collinear points determine a triangle and a unique plane, i.e. two dimensional Cartesian space in Euclidean geometry.

From the systemics perspective, triangle is the structure of every system composed with three reciprocally connected/interrelated abstract or real objects.

Note:   The above text is excerpted from the Wikipedia article "Triangle", which has been released under the GNU Free Documentation License.
Related Stories

Share This Page:

Computers & Math News
October 7, 2015

Latest Headlines
updated 12:56 pm ET