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Shapes Worksheet for Maths Olympiad Class 4

Maths Olympiad topic 6: Sides, corners and cubes · Set 79 · 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 2 pentagons and 4 squares have altogether? (a) 26 (b) 16 (c) 28 (d) 10
  2. 2.How many faces do 4 cubes have altogether? (a) 24 (b) 32 (c) 48 (d) 6
  3. 3.How many sides do 5 octagons and 4 pentagons have altogether? (a) 40 (b) 57 (c) 20 (d) 60
  4. 4.How many sides do 5 rectangles and 2 squares have altogether? (a) 7 (b) 8 (c) 20 (d) 28
  5. 5.How many corners do 5 triangles and 3 pentagons have altogether? (a) 34 (b) 15 (c) 30 (d) 8
  6. 6.How many sides do 1 pentagon and 4 rectangles have altogether? (a) 5 (b) 21 (c) 24 (d) 16
  7. 7.How many sides do 2 pentagons and 3 squares have altogether? (a) 12 (b) 23 (c) 22 (d) 10
  8. 8.How many corners do 2 triangles and 3 pentagons have altogether? (a) 15 (b) 6 (c) 19 (d) 21
  9. 9.How many edges do 2 cubes have altogether? (a) 25 (b) 12 (c) 24 (d) 16
  10. 10.How many sides do 1 triangle and 1 pentagon have altogether? (a) 2 (b) 5 (c) 8 (d) 3
  11. 11.How many sides do 1 triangle and 1 octagon have altogether? (a) 2 (b) 8 (c) 11 (d) 3
  12. 12.How many corners do 5 rectangles and 1 hexagon have altogether? (a) 6 (b) 34 (c) 20 (d) 26
  13. 13.How many sides do 2 squares and 4 rectangles have altogether? (a) 24 (b) 6 (c) 8 (d) 16
  14. 14.How many faces do 2 cubes have altogether? (a) 6 (b) 12 (c) 16 (d) 24
  15. 15.How many sides do 1 octagon and 3 squares have altogether? (a) 28 (b) 8 (c) 20 (d) 12
  16. 16.How many faces do 3 cubes have altogether? (a) 6 (b) 18 (c) 36 (d) 24
  17. 17.How many sides do 5 rectangles and 4 squares have altogether? (a) 20 (b) 16 (c) 36 (d) 9
  18. 18.How many corners do 2 octagons and 3 triangles have altogether? (a) 16 (b) 25 (c) 30 (d) 9
  19. 19.How many faces do 5 cubes have altogether? (a) 6 (b) 60 (c) 40 (d) 30
  20. 20.How many corners do 5 hexagons and 5 pentagons have altogether? (a) 10 (b) 25 (c) 30 (d) 55
  21. 21.How many corners do 3 hexagons and 5 pentagons have altogether? (a) 43 (b) 25 (c) 18 (d) 45
  22. 22.How many sides do 4 squares and 5 hexagons have altogether? (a) 30 (b) 16 (c) 46 (d) 44
  23. 23.How many edges do 3 cubes have altogether? (a) 36 (b) 18 (c) 24 (d) 12
  24. 24.How many corners do 2 cubes have altogether? (a) 12 (b) 8 (c) 24 (d) 16
  25. 25.How many sides do 3 triangles and 1 hexagon have altogether? (a) 9 (b) 6 (c) 15 (d) 21
  26. 26.How many sides do 2 rectangles and 1 triangle have altogether? (a) 3 (b) 8 (c) 11 (d) 10
  27. 27.How many corners do 4 squares and 4 pentagons have altogether? (a) 36 (b) 20 (c) 8 (d) 16
  28. 28.How many corners do 2 hexagons and 1 octagon have altogether? (a) 20 (b) 8 (c) 22 (d) 12
  29. 29.How many sides do 1 octagon and 4 pentagons have altogether? (a) 37 (b) 28 (c) 8 (d) 20
  30. 30.How many sides do 2 rectangles and 4 hexagons have altogether? (a) 24 (b) 32 (c) 8 (d) 28
  31. 31.How many corners do 3 pentagons and 1 hexagon have altogether? (a) 23 (b) 6 (c) 21 (d) 15
  32. 32.How many corners do 1 rectangle and 4 hexagons have altogether? (a) 4 (b) 24 (c) 22 (d) 28
  33. 33.How many corners do 2 hexagons and 4 pentagons have altogether? (a) 20 (b) 32 (c) 34 (d) 12
  34. 34.How many corners do 2 triangles and 5 rectangles have altogether? (a) 26 (b) 6 (c) 20 (d) 23
  35. 35.How many corners do 1 triangle and 3 rectangles have altogether? (a) 15 (b) 13 (c) 12 (d) 3
  36. 36.How many corners do 4 pentagons and 2 triangles have altogether? (a) 20 (b) 26 (c) 22 (d) 6
  37. 37.How many corners do 4 pentagons and 2 hexagons have altogether? (a) 12 (b) 20 (c) 34 (d) 32
  38. 38.How many sides do 4 octagons and 2 pentagons have altogether? (a) 42 (b) 32 (c) 10 (d) 36
  39. 39.How many edges do 5 cubes have altogether? (a) 12 (b) 60 (c) 30 (d) 40
  40. 40.How many corners do 4 triangles and 4 squares have altogether? (a) 16 (b) 28 (c) 12 (d) 8

Answer key

  1. 26
  2. 24
  3. 60
  4. 28
  5. 30
  6. 21
  7. 22
  8. 21
  9. 24
  10. 8
  11. 11
  12. 26
  13. 24
  14. 12
  15. 20
  16. 18
  17. 36
  18. 25
  19. 30
  20. 55
  21. 43
  22. 46
  23. 36
  24. 16
  25. 15
  26. 11
  27. 36
  28. 20
  29. 28
  30. 32
  31. 21
  32. 28
  33. 32
  34. 26
  35. 15
  36. 26
  37. 32
  38. 42
  39. 60
  40. 28

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