10-simplex

A 10-simplex is a really fancy shape that has 11 corners, 55 edges, 165 two-dimensional faces, and 252 three-dimensional faces. Think of it like a super complex spiderweb made up of a lot of triangles and squares! It's difficult to imagine because it's not something we see in our everyday lives, but mathematicians use it to study and solve problems in higher dimensions. So just know that it's a really cool shape that helps smart people do important things!