Sometimes you can fold a shape in half, and if it fits into itself perfectly with no overlaps you have found a line of symmetry. Some shapes have more than one line of symmetry. Let's look at some ...

But there is one medal he's yet to win. The Symmetry Medal. It’s better than all the others because it’s made of chocolate. To win the Symmetry Medal, Ethan has to be able to find the line of ...

According to the new study, bilateral symmetry—where there is only one line that divides the flower into two equal halves—has evolved and been lost multiple times independently in sunflowers ...