A triangle has 3 corners, and a hexagon has 6 corners.

Geometric Hexagon

Let's resume.

And they'll be the same as the symmetries of the triangle, or the symmetries of the six pointed starfish.

So this is a right triangle.

Half Width and Full Width Forms

Six Point Star

Geometric Right Angle Triangle

triangle

Translate

Triangle

But the shapes match up if I rotate by a sixth of a turn around the point where all the triangles meet.

As you can see, the sides A, B and C of a triangle...

It's a joint of tubes. You start by teaching angles an acute angle, a right angle, an obtuse angle, a straight angle.

Six Point Star Reverse

So let me draw some right triangles, let me just draw one right triangle.

This right here is a right angle.

Triangle

Sierpinski

Rounded Rectangles

Triangles

Rounded corners

Geometric Six Point Star

And what about the triangle?

Patient Triangle.

smooth triangle

Sierpinski

Equilateral Triangle

Remove a Triangle

Add a Triangle

Move a Triangle

Show a Triangle

Hide a Triangle

Draws rectangles and squares with rounded corners

An hexagon has six sides.

A square has four angles.

Three sided cells

Keep dead cells

Select this triangle

Map this triangle

onto this other triangle

Triangular pyramid

Rounded Joined Rectangle

Geometric Heptagon

Geometric Pentagon