# 3D Shapes & Nets

A 3D shape is a geometric figure that has three dimensions: length, width, and height. 3D shapes are also known as solid shapes. Some examples of 3D shapes include:

Cube: A cube is a 3D shape with six square faces that are all the same size.

Sphere: A sphere is a 3D shape that is perfectly round, like a ball. It has no flat faces or corners.

Cylinder: A cylinder is a 3D shape with two circular faces that are parallel to each other, connected by a curved surface.

Cone: A cone is a 3D shape with a circular base and a single point at the top.

Pyramid: A pyramid is a 3D shape with a flat base and triangular faces that meet at a single point.

Torus: A torus is a 3D shape that is shaped like a donut, with a circular hole in the middle.

These are just a few examples of 3D shapes. There are many other types of 3D shapes, including prisms, polyhedra, and more. 3D shapes are used in many different fields, including engineering, architecture, and design.

A 3D shape net is a 2D representation of a 3D shape that shows its faces and edges. It is a diagram that can be used to visualize the structure of a 3D shape and to understand how it is made up of flat faces and straight edges.

To create a 3D shape net, you start by drawing the top and bottom faces of the shape. Then, you add the sides and edges, connecting them to the top and bottom faces. Some 3D shapes, such as a cube or a pyramid, can be easily represented with a 3D shape net. Other curved shapes, such as a sphere or a cone, may be more difficult to represent accurately with a 3D shape net.

3D shape nets can be useful for understanding the properties of 3D shapes, and for visualizing how they can be assembled from flat faces and edges. They can also be used in geometry and engineering to design and construct 3D objects.

## The following website has models of various polyhedra

For more details visit: https://www.polyhedra.net/en/