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Celeste International School

Grade 3 · Worksheet

3D shapes & nets

Nets of 3D shapes

Name: ______________________________Date: ______________Score: ______ / 20
  1. 1.

    What is a net of a 3D shape?

    1. AA 3D shape opened out flat
    2. BA curved surface
    3. CA single vertex
    4. DA type of prism
  2. 2.

    The net of a square-based pyramid has how many square faces?

  3. 3.

    How many faces does the net of a square-based pyramid have altogether?

  4. 4.

    How many faces does a pentagon-based pyramid have?

  5. 5.

    How many faces does a heptagon-based (7-sided base) pyramid have?

  6. 6.

    What are the faces of a pentagon-based pyramid?

    1. A5 pentagons
    2. B1 pentagon and 5 triangles
    3. C2 pentagons and 5 rectangles
    4. D6 triangles
  7. 7.

    Which 3D shape is made from a net of 2 circles and a curved rectangle?

    1. ACone
    2. BCylinder
    3. CSphere
    4. DCube
  8. 8.

    The net of a cube is made of 6 squares.

    True False
  9. 9.

    A tetrahedron has 4 faces.

    True False
  10. 10.

    The net of a pentagonal prism has how many rectangular faces?

  11. 11.

    Put these pyramids in order by number of faces, fewest first.

    Write the order (in order) in the boxes:

    • ?hexagon-based pyramid
    • ?triangle-based pyramid
    • ?pentagon-based pyramid
    • ?square-based pyramid
  12. 12.

    Which net makes a pentagon-based pyramid?

    1. A1 pentagon and 5 triangles
    2. B2 pentagons and 5 rectangles
    3. C6 squares
    4. D4 triangles
  13. 13.

    Sara unfolds a triangular sweet packet. What 3D shape was the packet?

    1. AA cuboid
    2. BA triangular prism
    3. CA cone
    4. DA sphere
  14. 14.

    How many vertices does a triangular prism have?

  15. 15.

    How many vertices does a cuboid have?

  16. 16.

    How many vertices does a pentagonal prism have?

  17. 17.

    How many faces does a pentagonal prism have?

  18. 18.

    How many faces are in the net of a triangular prism?

  19. 19.

    The net of a hexagonal prism has 10 faces.

    True False
  20. 20.

    The net of a cube has 8 faces.

    True False
Celeste International School

Answer key

3D shapes & nets — Nets of 3D shapes

  1. 1.A. A 3D shape opened out flat
  2. 2.1
  3. 3.5
  4. 4.6
  5. 5.8
  6. 6.B. 1 pentagon and 5 triangles
  7. 7.B. Cylinder
  8. 8.True
  9. 9.True
  10. 10.5
  11. 11.triangle-based pyramid, square-based pyramid, pentagon-based pyramid, hexagon-based pyramid
  12. 12.A. 1 pentagon and 5 triangles
  13. 13.B. A triangular prism
  14. 14.6
  15. 15.8
  16. 16.10
  17. 17.7
  18. 18.5
  19. 19.False
  20. 20.False