Isosceles triangles
– The apex is the vertex where the two sides of equal length meet.
– The apex is opposite the unequal third side.
Pyramids and cones
– In a pyramid or cone, the apex is the vertex at the top.
– The apex is opposite the base.
– In a pyramid, the apex is the point that is part of all the lateral faces.
– The apex is where all the lateral edges meet.
References
– Weisstein, Eric W. Apex.
– MathWorld.
– Jacobs, Harold R. (2003). Geometry: Seeing, Doing, Understanding (Thirded.). New York City: W. H. Freeman and Company. pp.647, 655. ISBN978-0-7167-4361-3.
– Retrieved from https://en.wikipedia.org/w/index.php?title=Apex_(geometry)&oldid=1168723195.
Categories
– Elementary geometry stubs.
– Parts of a triangle.
– Polyhedra.
– Articles with short description.
– Short description is different from Wikidata.
Hidden categories
– All stub articles. Source: https://en.wikipedia.org/wiki/Apex_(geometry)
In geometry, an apex (pl.: apices) is the vertex which is in some sense the "highest" of the figure to which it belongs. The term is typically used to refer to the vertex opposite from some "base". The word is derived from the Latin for 'summit, peak, tip, top, extreme end'.
