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Shapes Worksheet for Maths Olympiad Class 4

Maths Olympiad topic 6: Sides, corners and cubes · Set 32 · 40 questions
TalentJR

How to solve it (Know the shape numbers): Sides: triangle 3, square and rectangle 4, pentagon 5, hexagon 6, octagon 8. A flat shape has as many corners as sides. Several of one shape: multiply (3 triangles → 3 × 3 = 9 sides). Two kinds of shape: work each out, then add. A cube has 6 faces, 12 edges and 8 corners.

NameDateTime takenScore ___ / 40
  1. 1.How many sides do 2 octagons and 1 triangle have altogether? (a) 3 (b) 16 (c) 14 (d) 19
  2. 2.How many corners do 4 cubes have altogether? (a) 48 (b) 8 (c) 24 (d) 32
  3. 3.How many corners do 1 hexagon and 3 squares have altogether? (a) 6 (b) 12 (c) 18 (d) 22
  4. 4.How many sides do 4 pentagons and 1 triangle have altogether? (a) 20 (b) 23 (c) 17 (d) 3
  5. 5.How many corners do 4 hexagons and 4 octagons have altogether? (a) 56 (b) 24 (c) 8 (d) 32
  6. 6.How many edges do 2 cubes have altogether? (a) 12 (b) 24 (c) 16 (d) 25
  7. 7.How many faces do 2 cubes have altogether? (a) 12 (b) 6 (c) 16 (d) 24
  8. 8.How many faces do 3 cubes have altogether? (a) 24 (b) 36 (c) 6 (d) 18
  9. 9.How many corners do 1 hexagon and 2 rectangles have altogether? (a) 14 (b) 16 (c) 6 (d) 8
  10. 10.How many sides do 3 pentagons and 3 octagons have altogether? (a) 6 (b) 39 (c) 15 (d) 24
  11. 11.How many corners do 3 octagons and 1 triangle have altogether? (a) 3 (b) 27 (c) 24 (d) 17
  12. 12.How many sides do 5 pentagons and 4 squares have altogether? (a) 25 (b) 40 (c) 41 (d) 16
  13. 13.How many corners do 1 square and 1 triangle have altogether? (a) 2 (b) 3 (c) 4 (d) 7
  14. 14.How many edges do 5 cubes have altogether? (a) 30 (b) 60 (c) 40 (d) 12
  15. 15.How many corners do 1 triangle and 2 octagons have altogether? (a) 14 (b) 16 (c) 19 (d) 3
  16. 16.How many corners do 5 hexagons and 3 triangles have altogether? (a) 33 (b) 39 (c) 9 (d) 30
  17. 17.How many sides do 4 triangles and 1 octagon have altogether? (a) 12 (b) 35 (c) 20 (d) 8
  18. 18.How many corners do 4 hexagons and 2 pentagons have altogether? (a) 34 (b) 24 (c) 10 (d) 32
  19. 19.How many faces do 5 cubes have altogether? (a) 6 (b) 40 (c) 30 (d) 60
  20. 20.How many sides do 4 rectangles and 2 hexagons have altogether? (a) 32 (b) 16 (c) 12 (d) 28
  21. 21.How many corners do 1 octagon and 4 squares have altogether? (a) 36 (b) 16 (c) 8 (d) 24
  22. 22.How many sides do 2 squares and 4 pentagons have altogether? (a) 28 (b) 8 (c) 26 (d) 20
  23. 23.How many corners do 1 square and 3 pentagons have altogether? (a) 4 (b) 17 (c) 15 (d) 19
  24. 24.How many sides do 5 rectangles and 2 triangles have altogether? (a) 23 (b) 26 (c) 6 (d) 20
  25. 25.How many sides do 3 hexagons and 4 squares have altogether? (a) 34 (b) 36 (c) 18 (d) 16
  26. 26.How many sides do 5 triangles and 1 hexagon have altogether? (a) 33 (b) 21 (c) 15 (d) 6
  27. 27.How many corners do 2 squares and 3 octagons have altogether? (a) 24 (b) 32 (c) 28 (d) 8
  28. 28.How many corners do 5 squares and 3 triangles have altogether? (a) 9 (b) 20 (c) 27 (d) 29
  29. 29.How many sides do 5 rectangles and 1 octagon have altogether? (a) 44 (b) 8 (c) 20 (d) 28
  30. 30.How many sides do 4 triangles and 3 rectangles have altogether? (a) 24 (b) 25 (c) 7 (d) 12
  31. 31.How many sides do 4 rectangles and 4 pentagons have altogether? (a) 8 (b) 36 (c) 20 (d) 16
  32. 32.How many corners do 2 octagons and 2 rectangles have altogether? (a) 4 (b) 24 (c) 8 (d) 16
  33. 33.How many sides do 1 pentagon and 1 rectangle have altogether? (a) 4 (b) 9 (c) 5 (d) 2
  34. 34.How many corners do 4 pentagons and 1 rectangle have altogether? (a) 24 (b) 21 (c) 20 (d) 4
  35. 35.How many corners do 2 cubes have altogether? (a) 16 (b) 8 (c) 12 (d) 24
  36. 36.How many edges do 3 cubes have altogether? (a) 36 (b) 12 (c) 24 (d) 18
  37. 37.How many sides do 4 hexagons and 5 triangles have altogether? (a) 42 (b) 24 (c) 15 (d) 39
  38. 38.How many sides do 1 square and 3 rectangles have altogether? (a) 12 (b) 4 (c) 16 (d) 17
  39. 39.How many sides do 4 hexagons and 1 triangle have altogether? (a) 18 (b) 3 (c) 27 (d) 24
  40. 40.How many sides do 4 pentagons and 2 triangles have altogether? (a) 22 (b) 6 (c) 20 (d) 26

Answer key

  1. 19
  2. 32
  3. 18
  4. 23
  5. 56
  6. 24
  7. 12
  8. 18
  9. 14
  10. 39
  11. 27
  12. 41
  13. 7
  14. 60
  15. 19
  16. 39
  17. 20
  18. 34
  19. 30
  20. 28
  21. 24
  22. 28
  23. 19
  24. 26
  25. 34
  26. 21
  27. 32
  28. 29
  29. 28
  30. 24
  31. 36
  32. 24
  33. 9
  34. 24
  35. 16
  36. 36
  37. 39
  38. 16
  39. 27
  40. 26

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