This is because a cube is a special type of cuboid that has all of its edges the same size. It has 4 around the top rectangular face and 4 around the bottom rectangular face.Ī cuboid has the same number of faces, edges and vertices as a cube. It also has 4 vertical edges connecting the vertices of the top rectangular face to the 4 vertices of the bottom rectangular face.Ī cuboid has 8 vertices. It has 4 horizontal edges around the top rectangular face and 4 horizontal edges around the bottom rectangular face. The opposite faces on a cuboid are equal in size.Ī cuboid has 12 edges. A cuboid is also known as a rectangular prism.Ī cuboid has 6 rectangular faces. It is an elongated cube.Ī cuboid is a 3D box shape and it has rectangular faces. There are 4 vertices on the top square face and 4 vertices on the bottom square face.Ī cuboid has 6 faces, 12 edges and 8 vertices. There are also 4 vertical edges connecting the top square face to the bottom square face. There are 4 horizontal edges around both of the top and bottom square faces. There are 12 edges on a cube, which are all the same length. All of its edges are the same length.Įach of the 6 faces of a cube is square-shaped because all of its edges are the same size.

Marking the faces, edges and vertices as you count them is important as it can be easy to count them twice or miss one out.Ī cube has 6 faces, 12 edges and 8 vertices. You could put a sticker or piece of plasticine on each vertex as you count it. You can mark each edge as you count it by drawing a line on each one. You can colour in each face a different colour, or write a number from 1 – 6 on each square face. When teaching this topic, it can be helpful to count the number of each property on the net before assembling it. Alternatively, there are some online interactive 3D shapes in the practice section above that you can use to count the faces, edges and vertices. There are also printable nets for each 3D shape above that can be downloaded and assembled to accompany this lesson. When teaching the properties of 3D shapes, it is worth having a physical item to look at as you identify and count each property. All three dimensional shapes have the the three dimensions of length, width and depth.Ī shape is 3D if it can be picked up and held in real-life. The following table lists the number of faces, edges and vertices for some common 3D shapes:ģD is short for three-dimensional. The poster below shows the faces, edges and vertices of 3D shapes labelled on a cube.

Vertices are the corners of a 3D shape formed where two or more edges meet.įor example, a cube has 6 faces, 12 edges and 8 vertices.

Edges are the lines where two faces on a 3D shape meet.

Faces are the flat or curved surfaces that make up the outside of a 3D shape.

So, the object with 2 flat surfaces is a barrel.The properties of 3D shapes are faces, edges and vertices. Now, a Rubik’s cube is a cube with 6 flat surfaces.Ī rectangular-shaped gift box has 6 flat surfaces.Ī cylindrical-shaped barrel has 2 flat surfaces. Let us count the flat sides of these objects. We have a Rubik’s cube, a ball, a gift, a barrel, and an ice cream cone. T he cone has only 1 curved surface, 1 flat surface towards the bottom, 1 edge, and 1 vertex.Įxample 3: Which object among the following has 2 flat surfaces.Īnswer: If you have a look at the above images, these are some of the objects we come across every day.

$3d shapes and names$

The rectangular prism has 6 faces, 12 edges, and 8 vertices. The cube has 6 faces, 12 edges, and 8 vertices. The cone has a flat surface towards the base of the shape.Įxample 2: How many faces, edges, and vertices do these following shapes have?Īnswer: Let us have a look at these 3D shapes.

The cylinders have both flat and curved surfaces. Example 1: Which of these 3D shapes have flat surfaces?Īnswer: The cubes and the rectangular prisms have flat surfaces.