Is there rigid motion when you flip a pancake?

Here's why:

* Rigid motion: A rigid motion is a transformation that preserves the shape and size of an object. In other words, the pancake doesn't change its form or dimensions when flipped.

* Reflection: A reflection is a rigid motion that flips an object over a line (the mirror line). Imagine a line running through the center of the pancake. When you flip it, you are essentially reflecting it across this line.

So, while the pancake changes its orientation, it remains the same size and shape, making the flipping process a rigid motion.