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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 3 · 40 questions
TalentJR

Robot tip (Repeat the side): repeat n { forward s; turn right A° } drives n sides: distance = n × s. A closed regular shape needs n × A = 360°, so A = 360 ÷ n. Rectangle: repeat 2 { forward a; turn 90°; forward b; turn 90° } → perimeter 2 × (a + b), area a × b.

NameDateTime takenScore ___ / 40
  1. 1.🔁 Why do we use a loop to draw a square? (a) squares need 5 sides (b) the same steps repeat (c) loops are colourful (d) to make it crash
  2. 2.🔁 For a regular shape with n sides, each turn is … (a) n × 360 degrees (b) 360 ÷ n degrees (c) 180 degrees always (d) 90 degrees always
  3. 3.🔁 How many sides does a hexagon have? (a) 7 (b) 5 (c) 8 (d) 6
  4. 4.🔁 A drawing robot runs:
    repeat 2 { forward 10 cm; turn right 90°; forward 10 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  5. 5.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  6. 6.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 40 cm; turn right ?° }
    What number goes in place of “?”
  7. 7.🔁 A drawing robot runs:
    repeat 8 { forward 60 cm; turn right 45° }
    Which shape does it draw?     (a) pentagon (b) triangle (c) octagon (d) square
  8. 8.🔁 A drawing robot runs:
    repeat 2 { forward 35 cm; turn right 90°; forward 30 cm; turn right 90° }
    How many cm does it drive in all?
  9. 9.🔁 A drawing robot runs:
    repeat 8 { forward 65 cm; turn right 45° }
    How many cm does it drive in all?
  10. 10.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  11. 11.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  12. 12.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 100 cm; turn right ?° }
    What number goes in place of “?”
  13. 13.🔁 A drawing robot runs:
    repeat 6 { forward 15 cm; turn right 60° }
    How many cm does it drive in all?
  14. 14.🔁 A drawing robot runs:
    repeat 5 { forward 35 cm; turn right 72° }
    Which shape does it draw?     (a) square (b) pentagon (c) octagon (d) triangle
  15. 15.🔁 A robot must draw a regular hexagon (6 equal sides):
    repeat 6 { forward 75 cm; turn right ?° }
    What number goes in place of “?”
  16. 16.🔁 A drawing robot runs:
    repeat 3 { forward 20 cm; turn right 120° }
    How many cm does it drive in all?
  17. 17.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  18. 18.🔁 A drawing robot runs:
    repeat 6 { forward 50 cm; turn right 60° }
    Which shape does it draw?     (a) triangle (b) square (c) octagon (d) hexagon
  19. 19.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  20. 20.🔁 A drawing robot runs:
    repeat 2 { forward 40 cm; turn right 90°; forward 45 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  21. 21.🔁 A drawing robot runs:
    repeat 2 { forward 55 cm; turn right 90°; forward 15 cm; turn right 90° }
    How many cm does it drive in all?
  22. 22.🔁 A drawing robot runs:
    repeat 2 { forward 25 cm; turn right 90°; forward 25 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  23. 23.🔁 A drawing robot runs:
    repeat 2 { forward 10 cm; turn right 90°; forward 55 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  24. 24.🔁 A drawing robot runs:
    repeat 2 { forward 45 cm; turn right 90°; forward 60 cm; turn right 90° }
    How many cm does it drive in all?
  25. 25.🔁 To draw any closed regular shape, a robot turns how many degrees in all? (a) 360° (b) 180° (c) 90° (d) 720°
  26. 26.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 25 cm; turn right ?° }
    What number goes in place of “?”
  27. 27.🔁 A drawing robot runs:
    repeat 3 { forward 65 cm; turn right 120° }
    Which shape does it draw?     (a) triangle (b) hexagon (c) octagon (d) square
  28. 28.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  29. 29.🔁 A drawing robot runs:
    repeat 6 { forward 10 cm; turn right 60° }
    How many cm does it drive in all?
  30. 30.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 40 cm; turn right ?° }
    What number goes in place of “?”
  31. 31.🔁 A drawing robot runs:
    repeat 8 { forward 25 cm; turn right 45° }
    How many cm does it drive in all?
  32. 32.🔁 A drawing robot runs:
    repeat 3 { forward 55 cm; turn right 120° }
    How many cm does it drive in all?
  33. 33.🔁 A drawing robot runs:
    repeat 4 { forward 20 cm; turn right 90° }
    How many cm does it drive in all?
  34. 34.🔁 A drawing robot runs:
    repeat 6 { forward 30 cm; turn right 60° }
    Which shape does it draw?     (a) triangle (b) hexagon (c) pentagon (d) square
  35. 35.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 80 cm; turn right ?° }
    What number goes in place of “?”
  36. 36.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  37. 37.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 85 cm; turn right ?° }
    What number goes in place of “?”
  38. 38.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  39. 39.🔁 A drawing robot runs:
    repeat 2 { forward 15 cm; turn right 90°; forward 15 cm; turn right 90° }
    How many cm does it drive in all?
  40. 40.🔁 A drawing robot runs:
    repeat 6 { forward 15 cm; turn right 60° }
    Which shape does it draw?     (a) triangle (b) pentagon (c) octagon (d) hexagon

Answer key

  1. the same steps repeat
  2. 360 ÷ n degrees
  3. 6
  4. 100
  5. 200
  6. 120
  7. octagon
  8. 130
  9. 520
  10. 200
  11. 40
  12. 120
  13. 90
  14. pentagon
  15. 60
  16. 60
  17. 400
  18. hexagon
  19. 300
  20. 1800
  21. 140
  22. 625
  23. 550
  24. 210
  25. 360°
  26. 72
  27. triangle
  28. 100
  29. 60
  30. 72
  31. 200
  32. 165
  33. 80
  34. hexagon
  35. 90
  36. 60
  37. 45
  38. 120
  39. 60
  40. hexagon

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