3 Dimensional - Definition with Examples

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3 Dimensional Games

Volume using unit cubes
Volume using Unit Cubes

A unit cube is a cube which has a volume or capacity of 1 units. You can count the number of unit cubes that can fit into a solid to find its volume.

Covers Common Core Curriculum 5.MD.5.aPlay Now

What are Three-Dimensional shapes?

In geometry, a three-dimensional shape can be defined as a solid figure or an object or shape that has three dimensions – length, width and height.Unlike two-dimensional shapes, three-dimensional shapes have thickness or depth.
 
 
 

The attributes of a three-dimensional figure are faces, edges and vertices. The three dimensions compose the edges of a 3D geometric shape.

Three dimensions of a three-dimensional shape or 3d Figure

A cube, rectangular prism, sphere, cone and cylinder are the basic 3-dimensional shapes we see around us. 

Three-dimensional 3-D shapes cube rectangular prism cuboid cone cylinder sphere

We can see a cube in a Rubik’s cube and a die, a rectangular prism in a book and a box, a sphere in a globe and a ball, a cone in carrot and an ice cream cone and a cylinder in a bucket and a barrel, around us. 

Three-dimensional 3-D shapes figures real life examples around us

 

Here’s a list of the 3-D or three-dimensional shapes with their name, pictures and attributes.

 Name of 3D shape:  Picture of 3D shape:  Attributes:
 Cube cube

 Faces - 6

 Edges - 12

 Vertices - 8

 Rectangular Prism or Cuboid rectangular prism

 Faces - 6

 Edges - 12

 Vertices - 8

 Sphere sphere

 Curved Face - 1

 Edges - 0

 Vertices - 0

 Cone cone

 Flat Face - 1

 Curved Face - 1

 Edges - 1

 Vertices - 1

 Cylinder cylinder

 Flat Face - 2

 Curved Face - 1

 Edges - 2

 Vertices - 0

 

  Fun Facts

  • All three-dimensional shapes are made up of two-dimensional shapes.
 

let's sing Let's sing!

3D shapes are fat not flat.
Find a cone in a birthday hat!
You see a sphere in a basketball,
And a cuboid in a building so tall!
You see a cube in the dice you roll,
And a cylinder in a shiny flag pole!
 

let's do it Let's do it!

Instead of showing videos around 3D shapes to your kids and kindergarteners, ask them to observe and spot things around them in which they can find three- dimensional shapes. 
You can further ask them to identify and sort the three -dimensional shape and it’s attributes.
 

related math vocabulary Related math vocabulary

 
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