In general usage, symmetry most often refers to mirror or reflective symmetry; that is, a line (in 2-D) or plane (in 3-D) can be drawn through an object such that the two halves are mirror images of ...

Oh it's the magic circle. Can't wait to be dazzled with a few tricks. Er…let's stick to some simple stuff for now. How about some transformations? If a shape is transformed, its appearance is changed.