When a shape looks the same after a reflection, that shape has a property called line symmetry. In this tutorial you'll see that some shapes have reflectional symmetry, and some don't. Check it out!
When you look in the mirror, you see your reflection. In math, you can create mirror images of figures by reflecting them over a given line. This tutorial introduces you to reflections and shows you some examples of reflections. Take a look!
Ever notice that some shapes look the same after you rotate them? These shapes have a property called rotational symmetry! Check out this tutorial to learn more.