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Shapes Worksheet for Maths Olympiad Class 4

Maths Olympiad topic 6: Sides, corners and cubes · Set 9 · 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 1 square and 2 octagons have altogether? (a) 16 (b) 3 (c) 4 (d) 20
  2. 2.How many corners do 5 triangles and 2 rectangles have altogether? (a) 23 (b) 15 (c) 26 (d) 8
  3. 3.How many corners do 5 cubes have altogether? (a) 40 (b) 8 (c) 30 (d) 60
  4. 4.How many corners do 4 octagons and 2 pentagons have altogether? (a) 36 (b) 10 (c) 32 (d) 42
  5. 5.How many sides do 1 pentagon and 1 hexagon have altogether? (a) 6 (b) 11 (c) 2 (d) 5
  6. 6.How many sides do 2 octagons and 5 triangles have altogether? (a) 46 (b) 15 (c) 31 (d) 16
  7. 7.How many faces do 2 cubes have altogether? (a) 16 (b) 6 (c) 12 (d) 24
  8. 8.How many corners do 4 octagons and 1 hexagon have altogether? (a) 5 (b) 38 (c) 6 (d) 32
  9. 9.How many corners do 2 hexagons and 1 pentagon have altogether? (a) 5 (b) 12 (c) 17 (d) 16
  10. 10.How many sides do 1 hexagon and 2 octagons have altogether? (a) 16 (b) 22 (c) 6 (d) 20
  11. 11.How many corners do 1 square and 3 rectangles have altogether? (a) 17 (b) 4 (c) 16 (d) 12
  12. 12.How many corners do 2 rectangles and 2 triangles have altogether? (a) 8 (b) 14 (c) 6 (d) 4
  13. 13.How many sides do 2 pentagons and 4 rectangles have altogether? (a) 16 (b) 28 (c) 26 (d) 10
  14. 14.How many corners do 3 octagons and 5 rectangles have altogether? (a) 24 (b) 20 (c) 52 (d) 44
  15. 15.How many sides do 2 squares and 4 rectangles have altogether? (a) 16 (b) 24 (c) 8 (d) 6
  16. 16.How many sides do 1 triangle and 3 hexagons have altogether? (a) 15 (b) 21 (c) 18 (d) 3
  17. 17.How many sides do 1 triangle and 4 pentagons have altogether? (a) 3 (b) 17 (c) 20 (d) 23
  18. 18.How many sides do 1 square and 5 triangles have altogether? (a) 4 (b) 19 (c) 15 (d) 23
  19. 19.How many sides do 2 hexagons and 3 triangles have altogether? (a) 24 (b) 12 (c) 21 (d) 9
  20. 20.How many corners do 3 octagons and 1 rectangle have altogether? (a) 4 (b) 24 (c) 20 (d) 28
  21. 21.How many sides do 4 rectangles and 5 triangles have altogether? (a) 32 (b) 31 (c) 16 (d) 15
  22. 22.How many sides do 4 triangles and 3 octagons have altogether? (a) 24 (b) 41 (c) 12 (d) 36
  23. 23.How many sides do 4 octagons and 3 squares have altogether? (a) 40 (b) 32 (c) 12 (d) 44
  24. 24.How many edges do 3 cubes have altogether? (a) 18 (b) 24 (c) 36 (d) 12
  25. 25.How many corners do 2 octagons and 1 rectangle have altogether? (a) 3 (b) 4 (c) 16 (d) 20
  26. 26.How many corners do 1 octagon and 2 triangles have altogether? (a) 6 (b) 19 (c) 8 (d) 14
  27. 27.How many sides do 3 hexagons and 3 rectangles have altogether? (a) 18 (b) 30 (c) 12 (d) 6
  28. 28.How many faces do 3 cubes have altogether? (a) 36 (b) 18 (c) 24 (d) 6
  29. 29.How many corners do 5 squares and 1 triangle have altogether? (a) 23 (b) 19 (c) 20 (d) 3
  30. 30.How many sides do 1 octagon and 3 rectangles have altogether? (a) 12 (b) 8 (c) 20 (d) 28
  31. 31.How many corners do 1 triangle and 4 pentagons have altogether? (a) 3 (b) 23 (c) 20 (d) 17
  32. 32.How many sides do 3 pentagons and 1 octagon have altogether? (a) 23 (b) 29 (c) 8 (d) 15
  33. 33.How many corners do 2 octagons and 3 squares have altogether? (a) 12 (b) 32 (c) 16 (d) 28
  34. 34.How many sides do 3 rectangles and 2 triangles have altogether? (a) 6 (b) 12 (c) 18 (d) 17
  35. 35.How many sides do 1 pentagon and 4 triangles have altogether? (a) 23 (b) 12 (c) 5 (d) 17
  36. 36.How many corners do 1 pentagon and 5 triangles have altogether? (a) 20 (b) 5 (c) 15 (d) 28
  37. 37.How many corners do 2 hexagons and 1 square have altogether? (a) 12 (b) 14 (c) 16 (d) 4
  38. 38.How many sides do 5 squares and 3 hexagons have altogether? (a) 20 (b) 18 (c) 42 (d) 38
  39. 39.How many sides do 4 triangles and 4 pentagons have altogether? (a) 8 (b) 20 (c) 32 (d) 12
  40. 40.How many sides do 1 square and 2 hexagons have altogether? (a) 4 (b) 16 (c) 14 (d) 12

Answer key

  1. 20
  2. 23
  3. 40
  4. 42
  5. 11
  6. 31
  7. 12
  8. 38
  9. 17
  10. 22
  11. 16
  12. 14
  13. 26
  14. 44
  15. 24
  16. 21
  17. 23
  18. 19
  19. 21
  20. 28
  21. 31
  22. 36
  23. 44
  24. 36
  25. 20
  26. 14
  27. 30
  28. 18
  29. 23
  30. 20
  31. 23
  32. 23
  33. 28
  34. 18
  35. 17
  36. 20
  37. 16
  38. 38
  39. 32
  40. 16

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