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 ...

A shape has a line of symmetry when the folded part sits perfectly on top with all edges matching. The number of lines of symmetry in a regular polygon is equal to the number of sides. A shape has ...

Biot's conjecture at the time — that optical activity is associated with molecules of low rotational symmetry — was later confirmed by Louis Pasteur.