Be careful to measure accurately when you are drawing a 2D shape. Draw a 2D shape that has 4 equal sides that are each 3 cm long and has 4 right angles. What is this shape called? It is a square.
In ShapeHero Factory you scrawl out little production lines on magical parchment to combine shapes to conjure heroes that then automatically defend a big crystal from hordes of little inkblot demons.