Three-dimensional shapes, or 3D shapes, are objects that have length, width, and height. Unlike flat shapes, such as squares and circles, 3D shapes can be seen from different angles. Common examples of 3D shapes include cubes, spheres, and cylinders. These shapes are all around us, from the basketball we play with to the boxes we use for storage. Understanding 3D shapes helps us in everyday life and in various fields like art and architecture. For instance, architects use 3D shapes to design buildings, ensuring they are both functional and visually appealing. Learning about these shapes can also enhance our spatial awareness and creativity.