Dual cone

Imagine you have two ice cream cones stacked on top of each other, with the points touching. That's kind of what a dual cone looks like. But instead of being made of ice cream, a dual cone is a mathematical concept that involves two "cones" in space.

A cone is a 3D shape that's wider at the top and narrower at the bottom, like a traffic cone. The dual cone is made up of two cones, one upside-down and one right-side up, with their bases touching. The dual cone looks kind of like an hourglass shape.

Mathematicians use the dual cone to talk about certain geometric shapes and the ways they interact with other shapes. It's a way of thinking about things like angles, distances, and lines in a certain area of space.

So, while a dual cone might look like an ice cream treat, it's actually a tool that helps mathematicians understand the world around us in a more precise way.