- The sum of all central angles of any polygon is always 360 degrees
- The sum of the interior angles of a triangle is always 180 degrees
- Congruent means that 2 shapes are exactly the same
- Similar shapes are the same shape, but not the same size
- Similar shapes must have proportional sides and congruent corresponding angles

We have done a ton and learned a lot this topic! Here are a few links that you may want to explore: