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Shapes Worksheet for Maths Olympiad Class 4

Maths Olympiad topic 6: Sides, corners and cubes · Set 18 · 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 corners do 4 cubes have altogether? (a) 48 (b) 8 (c) 24 (d) 32
  2. 2.How many corners do 1 octagon and 3 squares have altogether? (a) 20 (b) 8 (c) 28 (d) 12
  3. 3.How many sides do 2 pentagons and 2 rectangles have altogether? (a) 18 (b) 8 (c) 10 (d) 4
  4. 4.How many sides do 2 hexagons and 4 pentagons have altogether? (a) 34 (b) 20 (c) 12 (d) 32
  5. 5.How many edges do 4 cubes have altogether? (a) 12 (b) 24 (c) 32 (d) 48
  6. 6.How many corners do 1 hexagon and 5 rectangles have altogether? (a) 34 (b) 6 (c) 20 (d) 26
  7. 7.How many corners do 2 squares and 4 triangles have altogether? (a) 12 (b) 22 (c) 8 (d) 20
  8. 8.How many faces do 2 cubes have altogether? (a) 16 (b) 6 (c) 12 (d) 24
  9. 9.How many sides do 1 octagon and 2 pentagons have altogether? (a) 10 (b) 18 (c) 8 (d) 21
  10. 10.How many faces do 3 cubes have altogether? (a) 18 (b) 36 (c) 24 (d) 6
  11. 11.How many corners do 1 pentagon and 3 squares have altogether? (a) 12 (b) 5 (c) 17 (d) 19
  12. 12.How many corners do 2 hexagons and 4 triangles have altogether? (a) 12 (b) 6 (c) 30 (d) 24
  13. 13.How many sides do 1 hexagon and 4 octagons have altogether? (a) 32 (b) 6 (c) 38 (d) 5
  14. 14.How many sides do 1 rectangle and 1 hexagon have altogether? (a) 4 (b) 6 (c) 2 (d) 10
  15. 15.How many sides do 4 hexagons and 3 squares have altogether? (a) 24 (b) 12 (c) 34 (d) 36
  16. 16.How many corners do 5 octagons and 3 triangles have altogether? (a) 49 (b) 9 (c) 39 (d) 40
  17. 17.How many corners do 5 cubes have altogether? (a) 30 (b) 8 (c) 60 (d) 40
  18. 18.How many sides do 1 rectangle and 5 squares have altogether? (a) 20 (b) 6 (c) 4 (d) 24
  19. 19.How many corners do 1 square and 2 triangles have altogether? (a) 11 (b) 4 (c) 10 (d) 6
  20. 20.How many sides do 4 pentagons and 2 triangles have altogether? (a) 6 (b) 20 (c) 26 (d) 22
  21. 21.How many corners do 1 pentagon and 1 triangle have altogether? (a) 8 (b) 3 (c) 2 (d) 5
  22. 22.How many edges do 2 cubes have altogether? (a) 12 (b) 24 (c) 25 (d) 16
  23. 23.How many edges do 3 cubes have altogether? (a) 24 (b) 18 (c) 12 (d) 36
  24. 24.How many sides do 2 pentagons and 3 squares have altogether? (a) 12 (b) 10 (c) 22 (d) 23
  25. 25.How many sides do 4 rectangles and 5 pentagons have altogether? (a) 40 (b) 16 (c) 25 (d) 41
  26. 26.How many sides do 5 octagons and 4 triangles have altogether? (a) 47 (b) 52 (c) 12 (d) 40
  27. 27.How many sides do 1 octagon and 5 squares have altogether? (a) 44 (b) 20 (c) 28 (d) 8
  28. 28.How many edges do 5 cubes have altogether? (a) 30 (b) 60 (c) 12 (d) 40
  29. 29.How many sides do 3 squares and 3 triangles have altogether? (a) 6 (b) 21 (c) 9 (d) 12
  30. 30.How many corners do 3 octagons and 5 triangles have altogether? (a) 49 (b) 24 (c) 39 (d) 15
  31. 31.How many corners do 3 octagons and 1 rectangle have altogether? (a) 20 (b) 24 (c) 28 (d) 4
  32. 32.How many corners do 3 rectangles and 5 squares have altogether? (a) 12 (b) 32 (c) 20 (d) 8
  33. 33.How many sides do 5 triangles and 1 pentagon have altogether? (a) 15 (b) 20 (c) 5 (d) 28
  34. 34.How many sides do 2 squares and 1 triangle have altogether? (a) 3 (b) 8 (c) 11 (d) 10
  35. 35.How many sides do 5 pentagons and 5 rectangles have altogether? (a) 20 (b) 25 (c) 45 (d) 10
  36. 36.How many corners do 4 triangles and 1 rectangle have altogether? (a) 12 (b) 4 (c) 16 (d) 19
  37. 37.How many corners do 1 triangle and 1 octagon have altogether? (a) 2 (b) 11 (c) 8 (d) 3
  38. 38.How many corners do 1 octagon and 4 rectangles have altogether? (a) 24 (b) 8 (c) 36 (d) 16
  39. 39.How many sides do 3 squares and 4 octagons have altogether? (a) 12 (b) 32 (c) 40 (d) 44
  40. 40.How many corners do 1 octagon and 3 rectangles have altogether? (a) 8 (b) 28 (c) 12 (d) 20

Answer key

  1. 32
  2. 20
  3. 18
  4. 32
  5. 48
  6. 26
  7. 20
  8. 12
  9. 18
  10. 18
  11. 17
  12. 24
  13. 38
  14. 10
  15. 36
  16. 49
  17. 40
  18. 24
  19. 10
  20. 26
  21. 8
  22. 24
  23. 36
  24. 22
  25. 41
  26. 52
  27. 28
  28. 60
  29. 21
  30. 39
  31. 28
  32. 32
  33. 20
  34. 11
  35. 45
  36. 16
  37. 11
  38. 24
  39. 44
  40. 20

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