This figure is a square. It has four equal sides and four right angles. This figure is a triangle. It has three sides and three angles. This figure is a circle. It has no sides or angles, just a curved boundary. These figures are a rectangle. They have four sides and four right angles, with opposite sides being equal in length. These figures are a pentagon. They have five sides and five angles. These figures are a hexagon. They have six sides and six angles. These figures are a octagon. They have eight sides and eight angles.