Shape of the universe

Shape of the Universe means two things.

• The first is the shape of the universe, such as the way it is curved, and its topology. This is studied in geometry.
• The second meaning is the shape of space-time.

Traditionally, there are three ways the universe can be shaped: saddle-like, spherical, or flat. Triangle's angles' sums are different in each. However, the most common belief among scientists today is that the universe is dodecahedron-shaped. A dodecahedron is composed of 12 regular pentagonal faces, with three meeting at each vertex. It has 20 vertices and 30 edges.