Cubes and rectangular prisms
Key Notes:

🟦 What is a Cube?
- A cube is a solid shape.
- It has 6 faces that are all squares.
- All sides of a cube are equal in length.
- Example: A dice or a Rubik’s cube.
📦 What is a Rectangular Prism?
- A rectangular prism is also a solid shape.
- It has 6 faces, but the faces are rectangles.
- The opposite faces are equal in size.
- Example: A book, brick, or a box.
🔢 How are They Similar?
- Both are 3D shapes (they have length, width, and height).
- Both have 6 faces, 12 edges, and 8 corners (vertices).
📐 How are They Different?
- A cube has all square faces.
- A rectangular prism has rectangle faces (not all sides are equal).
Learn with an example
🖋️Which shape is a cube?

Look at the shapes one by one to find the cube.
This shape has 6 faces. All the faces are squares.

- This shape is a cube.
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This shape is completely round. It has no flat surfaces.

This shape is a sphere. It is not a cube.
🖋️Which shape is a cube?

Look at the shapes one by one to find the cube.
This shape has a pointy tip.

- It has one circle as a face. The rest of the shape is curved.

This shape is a cone. It is not a cube.
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This shape has 6 faces. All the faces are squares.

This shape is a cube.
🖋️Which shape is a cube?

Look at the shapes one by one to find the cube.
This shape has 6 faces. All the faces are squares.

This shape is a cube.
________________________________________________________
This shape is completely round. It has no flat surfaces.

This shape is a sphere. It is not a cube.
Let’s practice!