Name given to certain main vertices in a plane figure or a solid.

The point at which all the generatrices of a cone meet is called the apex.  It is also the vertex of the cone.

The meeting point of the vertices of the triangles that make up the lateral surface of a pyramid is also called the apex of the pyramid.

The vertex of a triangle that is opposite the base used to calculate the area of the triangle is sometimes called the apex.


  • Apex of a solid:

  • Apex of a triangle:

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