Tangrams!

Move any shape by dragging a black vertex or the shape itself. Spin any shape by moving its white vertex.

Move any shape by dragging a black vertex or the shape itself. Spin any shape by moving its white vertex.

Move any shape by dragging a black vertex or the shape itself. Spin any shape by moving its white vertex.

Move any shape by dragging a black vertex or the shape itself. Spin any shape by moving its white vertex.