Question: is a square a 2d shape?
Answer: 2D shapes A 2D shape is a flat shape. We are learning about the following 2D shapes - circle, square, rectangle, triangle, pentagon, hexagon, octagon. ... E.g. a triangle has 3 straight sides and 3 corners, whereas a circle has 1 curved side but no corners. 3D shapes A 3D shape is a blown up shape.