a face.
It is called a face.
face
a face
Face.
A lot of people think that the face in geometry is the side of a three dimensional figure, but it can really mean the specific side of a 2-d figure as well. Face just means the front of a figure for the side you're looking at. You can have the face of a circle, for example. It just means the side of the circle you're referring to.
A side of a solid figure is called a face.
a base.
a face
Since a face of a 3d figure is the same as a side, you have two faces sharing a face! The result is lots of coincident faces!
The face of a triangle is the flat surface of the solid figure. _________________________________________________ A face is a side of a 3 dimensional figure. So, the number of faces a triangle would be 0.
The base.