Organic shapes don't have names. They are random shapes that you make up.
Tangram puzzles have seven different shapes.
You cannot have a 2 piece tangram. A tangram, by definition, is 7 pieces.
Try a tangram. Look it up on Google and you'll find a pattern and some questions. A tangram is a special pattern of shapes that, when put together correctly, will create a square. However, these shapes can also make other things like cats, foxes, fishermen, geisha, dogs, fish etc. It's also fun to make up your own designs! Also, it helps if you have an active imagination yet are fairly logical ( aka can see shapes in clouds and can figure out puzzles easily)
edi itanong mo sa nanay mo
The square and the parralalagram.