Rigid transformation

Rigid transformations are like moving shapes around without changing their size or shape. Imagine you have a toy car and you want to move it around your room. You can move it forward, backward, left or right, but the car stays the same size and doesn't get squished or stretched.

Now imagine you take a piece of paper and draw a picture of a cat. You can move the paper around your desk, but the cat still looks exactly the same. That's a rigid transformation - moving something without changing its size or shape.

Rigid transformations can include rotating an object, flipping it over (called a reflection), or sliding it in any direction. The important part is that the object stays exactly the same size and shape after the transformation. Imagine you take a wooden block and rotate it so that it's standing on one of its corners. The block still has the same dimensions, and if you measured it, it would be the same size as before.

Overall, rigid transformations are a way to move objects around without changing them in any way. They let you explore different positions and orientations of objects without altering their shape or size.