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Shapes Worksheet for Maths Olympiad Class 4

Maths Olympiad topic 6: Sides, corners and cubes · Set 90 · 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 edges do 2 cubes have altogether? (a) 12 (b) 16 (c) 25 (d) 24
  2. 2.How many corners do 2 hexagons and 5 triangles have altogether? (a) 36 (b) 27 (c) 15 (d) 12
  3. 3.How many sides do 5 triangles and 2 squares have altogether? (a) 8 (b) 15 (c) 23 (d) 26
  4. 4.How many sides do 4 pentagons and 2 triangles have altogether? (a) 6 (b) 26 (c) 20 (d) 22
  5. 5.How many sides do 5 hexagons and 1 pentagon have altogether? (a) 5 (b) 35 (c) 30 (d) 31
  6. 6.How many corners do 1 rectangle and 1 triangle have altogether? (a) 4 (b) 2 (c) 3 (d) 7
  7. 7.How many faces do 3 cubes have altogether? (a) 24 (b) 36 (c) 18 (d) 6
  8. 8.How many corners do 3 cubes have altogether? (a) 36 (b) 24 (c) 18 (d) 8
  9. 9.How many corners do 2 cubes have altogether? (a) 24 (b) 16 (c) 8 (d) 12
  10. 10.How many corners do 5 cubes have altogether? (a) 30 (b) 40 (c) 60 (d) 8
  11. 11.How many corners do 4 squares and 1 pentagon have altogether? (a) 5 (b) 21 (c) 16 (d) 24
  12. 12.How many sides do 5 triangles and 3 octagons have altogether? (a) 49 (b) 24 (c) 39 (d) 15
  13. 13.How many sides do 4 hexagons and 5 pentagons have altogether? (a) 50 (b) 24 (c) 25 (d) 49
  14. 14.How many sides do 4 triangles and 4 squares have altogether? (a) 12 (b) 28 (c) 16 (d) 8
  15. 15.How many corners do 2 pentagons and 3 rectangles have altogether? (a) 12 (b) 23 (c) 22 (d) 10
  16. 16.How many sides do 1 square and 4 hexagons have altogether? (a) 24 (b) 22 (c) 28 (d) 4
  17. 17.How many corners do 3 triangles and 3 rectangles have altogether? (a) 9 (b) 12 (c) 21 (d) 6
  18. 18.How many faces do 2 cubes have altogether? (a) 6 (b) 24 (c) 16 (d) 12
  19. 19.How many faces do 4 cubes have altogether? (a) 6 (b) 48 (c) 24 (d) 32
  20. 20.How many sides do 5 octagons and 3 squares have altogether? (a) 44 (b) 40 (c) 52 (d) 12
  21. 21.How many sides do 4 octagons and 2 hexagons have altogether? (a) 44 (b) 32 (c) 12 (d) 40
  22. 22.How many sides do 2 pentagons and 2 squares have altogether? (a) 10 (b) 4 (c) 8 (d) 18
  23. 23.How many sides do 3 pentagons and 3 rectangles have altogether? (a) 27 (b) 6 (c) 12 (d) 15
  24. 24.How many corners do 1 square and 4 octagons have altogether? (a) 4 (b) 24 (c) 32 (d) 36
  25. 25.How many corners do 4 cubes have altogether? (a) 32 (b) 24 (c) 8 (d) 48
  26. 26.How many sides do 5 octagons and 1 rectangle have altogether? (a) 4 (b) 28 (c) 40 (d) 44
  27. 27.How many sides do 5 octagons and 1 square have altogether? (a) 40 (b) 44 (c) 28 (d) 4
  28. 28.How many faces do 5 cubes have altogether? (a) 6 (b) 30 (c) 40 (d) 60
  29. 29.How many sides do 2 octagons and 2 squares have altogether? (a) 16 (b) 8 (c) 4 (d) 24
  30. 30.How many corners do 1 octagon and 2 squares have altogether? (a) 3 (b) 20 (c) 16 (d) 8
  31. 31.How many sides do 2 squares and 2 triangles have altogether? (a) 4 (b) 14 (c) 6 (d) 8
  32. 32.How many corners do 4 hexagons and 3 squares have altogether? (a) 34 (b) 24 (c) 36 (d) 12
  33. 33.How many corners do 2 squares and 3 octagons have altogether? (a) 32 (b) 28 (c) 8 (d) 24
  34. 34.How many corners do 4 triangles and 2 rectangles have altogether? (a) 12 (b) 20 (c) 8 (d) 22
  35. 35.How many sides do 1 triangle and 2 hexagons have altogether? (a) 16 (b) 12 (c) 15 (d) 3
  36. 36.How many edges do 3 cubes have altogether? (a) 24 (b) 18 (c) 36 (d) 12
  37. 37.How many corners do 5 pentagons and 5 hexagons have altogether? (a) 10 (b) 30 (c) 55 (d) 25
  38. 38.How many sides do 3 rectangles and 2 triangles have altogether? (a) 18 (b) 12 (c) 6 (d) 17
  39. 39.How many corners do 1 pentagon and 3 octagons have altogether? (a) 5 (b) 24 (c) 29 (d) 23
  40. 40.How many corners do 2 pentagons and 2 squares have altogether? (a) 10 (b) 18 (c) 4 (d) 8

Answer key

  1. 24
  2. 27
  3. 23
  4. 26
  5. 35
  6. 7
  7. 18
  8. 24
  9. 16
  10. 40
  11. 21
  12. 39
  13. 49
  14. 28
  15. 22
  16. 28
  17. 21
  18. 12
  19. 24
  20. 52
  21. 44
  22. 18
  23. 27
  24. 36
  25. 32
  26. 44
  27. 44
  28. 30
  29. 24
  30. 16
  31. 14
  32. 36
  33. 32
  34. 20
  35. 15
  36. 36
  37. 55
  38. 18
  39. 29
  40. 18

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