3D Shapes
Three-dimensional (3D) shapes are solid shapes that take up space. Unlike flat 2D shapes, 3D shapes have length, width, AND height — you can hold them in your hand.
What You Need to Know
Three-dimensional (3D) shapes are solid shapes that take up space. Unlike flat 2D shapes, 3D shapes have length, width, AND height — you can hold them in your hand.
Key Concept Diagram
A sphere is round like a ball — it can roll in any direction
A cube has 6 equal square faces — like a dice
A cylinder has 2 circular ends and 1 curved surface — like a tin can
A cone has a circular base and a pointed top — like an ice-cream cone
Key Vocabulary
3D shape
A solid shape that has length, width and height
face
A flat surface on a 3D shape
vertex
A corner where edges meet (plural: vertices)
edge
A straight line where two faces of a 3D shape meet
Knowledge Check
Select the correct answer for each question. Click "Check Answer" to see if you are right.
Question 1
Which 3D shape looks like a ball?
Question 2
How many faces does a cube have?
Question 3
Which shape can roll AND slide?
Question 4
A tin can is an example of which 3D shape?
Question 5
Which 3D shape has a pointed top and a circular base?
Key Concepts Summary
- ●A sphere is round like a ball — it can roll in any direction
- ●A cube has 6 equal square faces — like a dice
- ●A cylinder has 2 circular ends and 1 curved surface — like a tin can
- ●A cone has a circular base and a pointed top — like an ice-cream cone