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Celeste International School

Grade 3 · Worksheet

2D shapes

2D shapes & tessellation

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

    A 2D shape with 3 straight sides is a...?

    1. Atriangle
    2. Bsquare
    3. Cpentagon
  2. 2.

    A closed shape with 5 straight sides and 5 vertices is a...?

    1. Ahexagon
    2. Bpentagon
    3. Csquare
  3. 3.

    A 2D shape with 6 sides is a...?

    1. Ahexagon
    2. Bpentagon
    3. Coctagon
  4. 4.

    How many sides does a square have?

  5. 5.

    How many vertices (corners) does a triangle have?

  6. 6.

    How many sides does a hexagon have?

  7. 7.

    How many vertices does a pentagon have?

  8. 8.

    How many vertices does a heptagon have?

  9. 9.

    Which shape has at least 7 vertices?

    1. Aheptagon
    2. Bpentagon
    3. Csquare
  10. 10.

    Which of these shapes is NOT a polygon?

    1. Acircle
    2. Btriangle
    3. Chexagon
  11. 11.

    A polygon has straight sides.

    True False
  12. 12.

    A circle is a polygon.

    True False
  13. 13.

    What does it mean when shapes tessellate?

    1. Athey are all the same colour
    2. Bthey all have curved sides
    3. Cthey fit together with no gaps or overlaps
  14. 14.

    Squares tessellate.

    True False
  15. 15.

    A regular triangle tessellates.

    True False
  16. 16.

    A regular hexagon tessellates.

    True False
  17. 17.

    A regular pentagon tessellates.

    True False
  18. 18.

    Which of these shapes does NOT tessellate on its own?

    1. Aa square
    2. Ba regular pentagon
    3. Ca regular hexagon
  19. 19.

    When shapes tessellate they leave no gaps.

    True False
  20. 20.

    Which shape has at least one curved side?

    1. Asemicircle
    2. Bsquare
    3. Ctriangle
Celeste International School

Answer key

2D shapes — 2D shapes & tessellation

  1. 1.A. triangle
  2. 2.B. pentagon
  3. 3.A. hexagon
  4. 4.4
  5. 5.3
  6. 6.6
  7. 7.5
  8. 8.7
  9. 9.A. heptagon
  10. 10.A. circle
  11. 11.True
  12. 12.False
  13. 13.C. they fit together with no gaps or overlaps
  14. 14.True
  15. 15.True
  16. 16.True
  17. 17.False
  18. 18.B. a regular pentagon
  19. 19.True
  20. 20.A. semicircle