symmetry- math

symmetry is a simple math subject, there are two types of symmetry, I will start with lines of symmetry. It is 2-d shapes that are folded in half and both sides are the  same like if it is a square you can fold it into 8 parts that look the same!
You can do thins with lots of shapes, but not all, an irregular shape is mostly non symmetrical.
  Like this one!



The second type of symmetry is rotational symmetry, it is a shape that when you turn it in a way that is not all the way, it looks the same as it did before you tuned it.
A circle will look the same no matter how you turn it!