Regular polygon

Okay, so a regular polygon is like a special shape. It's a shape that has all the sides the same length and all the angles the same size. Imagine drawing a square where all the sides are the same length and all the corners are the same angle. That's a regular polygon!

Now, let's say we draw a triangle where all the sides are the same length and all the angles are the same size. That's also a regular polygon!

In fact, any shape that has all the sides the same length and all the angles the same size is a regular polygon. This includes shapes like pentagons, hexagons, octagons, and many others.

Regular polygons are special because they have some really neat properties. For example, if you draw a line from the center of a regular polygon to each of the vertices (the corners), you'll get a bunch of lines that are all the same length. This means the polygon is symmetrical, which is just a fancy way of saying it looks the same when you flip it around or rotate it.

So basically, a regular polygon is like a shape where everything is the same. All the sides are the same length, all the angles are the same size, and it's symmetrical. Pretty cool, huh?