Circumcentre.
Incentre.
It is called verticies or a vertex
Sphere?
Circumcenter, this is the center-point of a circle circumscribed around the triangle. If the triangle is obtuse, then this point is outside the triangle and if the triangle is a right triangle, then the point is the midpoint of the hypotenuse.
Verticies
Incentre.
It is called verticies or a vertex
Its technical name is the incenter; it's also the center of the largest circle that can be inscribed within the triangle. (It is also equidistant from the nearest point along each of the three sides, if that's not obvious.)
Sphere?
Circumcenter, this is the center-point of a circle circumscribed around the triangle. If the triangle is obtuse, then this point is outside the triangle and if the triangle is a right triangle, then the point is the midpoint of the hypotenuse.
Verticies
Where faces meet there are edges and where edges meet there are verticies
The name of the point at which all of a triangle's angle bisectors converge is the incenter.
It is called the circumcenter of the triangle. . The circumcenter is equidistant from the three vertices, and so the common distance is the radius of a circle that passes through the vertices. Another name for it is the circumcircle
A cube has 6 sides 8 verticies and 12 edges
centroid is the name
orthocenter