ELI5: Explain Like I'm 5

concave polygon

Hey kiddo, have you ever played with building blocks or Legos? Imagine you have a bunch of blocks and you want to connect them together to make a shape - that's what we call a polygon. A concave polygon is a type of polygon that sort of looks like a cave or a scooped-out bowl.

So, you know how when you build with blocks, sometimes you can make a shape where the blocks push outward, and sometimes the blocks sort of bend inward? That's what happens with a concave polygon. In a concave polygon, at least one of the corners (which are also called vertices) is pushed in like it's the bottom of a scoop - see how I'm scooping my hand down like this? That's what it looks like!

Now, why is it important to know about concave polygons? Well, sometimes when you're calculating the area of a polygon or trying to figure out how to draw something using computer programming, it helps to know whether it's a concave polygon or not. It's kind of like learning the difference between a square and a triangle - they have different characteristics that you need to take into account when you're working with them.

Does that make sense, kiddo? Let me know if you have any questions!