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Shapes Worksheet for Maths Olympiad Class 4

Maths Olympiad topic 6: Sides, corners and cubes · Set 148 · 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 5 pentagons and 5 rectangles have altogether? (a) 45 (b) 20 (c) 10 (d) 25
  2. 2.How many corners do 2 triangles and 2 pentagons have altogether? (a) 16 (b) 6 (c) 10 (d) 4
  3. 3.How many sides do 4 squares and 5 rectangles have altogether? (a) 20 (b) 36 (c) 16 (d) 9
  4. 4.How many sides do 1 hexagon and 5 octagons have altogether? (a) 6 (b) 46 (c) 40 (d) 38
  5. 5.How many corners do 3 triangles and 2 octagons have altogether? (a) 25 (b) 9 (c) 30 (d) 16
  6. 6.How many corners do 2 pentagons and 4 rectangles have altogether? (a) 16 (b) 26 (c) 10 (d) 28
  7. 7.How many edges do 3 cubes have altogether? (a) 24 (b) 36 (c) 18 (d) 12
  8. 8.How many corners do 1 triangle and 1 hexagon have altogether? (a) 6 (b) 3 (c) 2 (d) 9
  9. 9.How many corners do 1 triangle and 5 rectangles have altogether? (a) 3 (b) 19 (c) 23 (d) 20
  10. 10.How many corners do 3 octagons and 3 squares have altogether? (a) 6 (b) 24 (c) 12 (d) 36
  11. 11.How many corners do 2 hexagons and 2 triangles have altogether? (a) 4 (b) 12 (c) 18 (d) 6
  12. 12.How many corners do 1 rectangle and 5 squares have altogether? (a) 24 (b) 20 (c) 4 (d) 6
  13. 13.How many edges do 2 cubes have altogether? (a) 12 (b) 16 (c) 25 (d) 24
  14. 14.How many corners do 4 triangles and 2 rectangles have altogether? (a) 22 (b) 20 (c) 12 (d) 8
  15. 15.How many sides do 4 triangles and 5 rectangles have altogether? (a) 31 (b) 12 (c) 20 (d) 32
  16. 16.How many edges do 4 cubes have altogether? (a) 24 (b) 32 (c) 48 (d) 12
  17. 17.How many corners do 3 cubes have altogether? (a) 8 (b) 18 (c) 24 (d) 36
  18. 18.How many sides do 2 hexagons and 1 square have altogether? (a) 16 (b) 12 (c) 4 (d) 14
  19. 19.How many faces do 2 cubes have altogether? (a) 6 (b) 16 (c) 12 (d) 24
  20. 20.How many sides do 2 rectangles and 1 square have altogether? (a) 4 (b) 8 (c) 3 (d) 12
  21. 21.How many corners do 2 rectangles and 1 octagon have altogether? (a) 8 (b) 16 (c) 3 (d) 20
  22. 22.How many corners do 2 hexagons and 2 squares have altogether? (a) 20 (b) 8 (c) 12 (d) 4
  23. 23.How many sides do 1 octagon and 1 pentagon have altogether? (a) 8 (b) 5 (c) 13 (d) 2
  24. 24.How many corners do 2 triangles and 5 octagons have altogether? (a) 46 (b) 40 (c) 6 (d) 31
  25. 25.How many sides do 1 pentagon and 3 rectangles have altogether? (a) 17 (b) 19 (c) 5 (d) 12
  26. 26.How many sides do 3 squares and 5 hexagons have altogether? (a) 38 (b) 12 (c) 30 (d) 42
  27. 27.How many corners do 5 triangles and 4 octagons have altogether? (a) 47 (b) 52 (c) 32 (d) 15
  28. 28.How many faces do 3 cubes have altogether? (a) 36 (b) 6 (c) 24 (d) 18
  29. 29.How many sides do 3 rectangles and 4 squares have altogether? (a) 7 (b) 28 (c) 16 (d) 12
  30. 30.How many corners do 2 pentagons and 2 triangles have altogether? (a) 10 (b) 16 (c) 4 (d) 6
  31. 31.How many sides do 4 octagons and 1 hexagon have altogether? (a) 32 (b) 6 (c) 38 (d) 5
  32. 32.How many sides do 1 triangle and 4 hexagons have altogether? (a) 24 (b) 18 (c) 27 (d) 3
  33. 33.How many sides do 4 hexagons and 3 pentagons have altogether? (a) 24 (b) 39 (c) 15 (d) 38
  34. 34.How many sides do 1 rectangle and 1 triangle have altogether? (a) 4 (b) 2 (c) 3 (d) 7
  35. 35.How many sides do 4 pentagons and 3 octagons have altogether? (a) 47 (b) 20 (c) 44 (d) 24
  36. 36.How many sides do 2 squares and 1 pentagon have altogether? (a) 5 (b) 14 (c) 13 (d) 8
  37. 37.How many corners do 2 cubes have altogether? (a) 16 (b) 8 (c) 24 (d) 12
  38. 38.How many sides do 3 squares and 5 rectangles have altogether? (a) 8 (b) 12 (c) 20 (d) 32
  39. 39.How many corners do 4 cubes have altogether? (a) 8 (b) 48 (c) 24 (d) 32
  40. 40.How many corners do 5 triangles and 2 pentagons have altogether? (a) 31 (b) 15 (c) 10 (d) 25

Answer key

  1. 45
  2. 16
  3. 36
  4. 46
  5. 25
  6. 26
  7. 36
  8. 9
  9. 23
  10. 36
  11. 18
  12. 24
  13. 24
  14. 20
  15. 32
  16. 48
  17. 24
  18. 16
  19. 12
  20. 12
  21. 16
  22. 20
  23. 13
  24. 46
  25. 17
  26. 42
  27. 47
  28. 18
  29. 28
  30. 16
  31. 38
  32. 27
  33. 39
  34. 7
  35. 44
  36. 13
  37. 16
  38. 32
  39. 32
  40. 25

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