To win the Symmetry Medal, Ethan has to be able to find the line of symmetry on an object and karate chop it down that line. Like that. Well done Ethan. VO: The line of symmetry is the imaginary ...

Symmetry is when one side of a shape is a mirror image of the other side. Lots of buildings and everyday objects use symmetry because it looks appealing to the human eye. But, if you step outside ...