Half Square Triangles

How many options are there with a two color half square triangles?
Think about this...you are going to make 50 half square triangles and put them into a quilt.
What are the options when rearranging the squares to make a block?

I've taken 16 half square triangles and rearrange all 16 to make these blocks.  There are many more options. What can you come up with?

It's like playing with a puzzle.

Have fun and happy quilting,
Denise