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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 237 · 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.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 35 cm; turn right ?° }
    What number goes in place of “?”
  2. 2.🔁 Why do we use a loop to draw a square? (a) the same steps repeat (b) squares need 5 sides (c) loops are colourful (d) to make it crash
  3. 3.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 45 cm; turn right ?° }
    What number goes in place of “?”
  4. 4.🔁 To draw any closed regular shape, a robot turns how many degrees in all? (a) 90° (b) 720° (c) 180° (d) 360°
  5. 5.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  6. 6.🔁 A drawing robot runs:
    repeat 2 { forward 15 cm; turn right 90°; forward 20 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  7. 7.🔁 For a regular shape with n sides, each turn is … (a) 360 ÷ n degrees (b) 180 degrees always (c) n × 360 degrees (d) 90 degrees always
  8. 8.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  9. 9.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 60 cm; turn right ?° }
    What number goes in place of “?”
  10. 10.🔁 A drawing robot runs:
    repeat 2 { forward 25 cm; turn right 90°; forward 45 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  11. 11.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  12. 12.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  13. 13.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  14. 14.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 10 cm; turn right ?° }
    What number goes in place of “?”
  15. 15.🔁 A drawing robot runs:
    repeat 4 { forward 50 cm; turn right 90° }
    How many cm does it drive in all?
  16. 16.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  17. 17.🔁 A drawing robot runs:
    repeat 2 { forward 20 cm; turn right 90°; forward 30 cm; turn right 90° }
    How many cm does it drive in all?
  18. 18.🔁 A drawing robot runs:
    repeat 5 { forward 55 cm; turn right 72° }
    Which shape does it draw?     (a) octagon (b) triangle (c) pentagon (d) hexagon
  19. 19.🔁 A drawing robot runs:
    repeat 4 { forward 30 cm; turn right 90° }
    Which shape does it draw?     (a) pentagon (b) square (c) octagon (d) triangle
  20. 20.🔁 A drawing robot runs:
    repeat 8 { forward 10 cm; turn right 45° }
    Which shape does it draw?     (a) pentagon (b) hexagon (c) triangle (d) octagon
  21. 21.🔁 A drawing robot runs:
    repeat 4 { forward 15 cm; turn right 90° }
    How many cm does it drive in all?
  22. 22.🔁 A drawing robot runs:
    repeat 2 { forward 20 cm; turn right 90°; forward 20 cm; turn right 90° }
    How many cm does it drive in all?
  23. 23.🔁 A drawing robot runs:
    repeat 3 { forward 100 cm; turn right 120° }
    How many cm does it drive in all?
  24. 24.🔁 A drawing robot runs:
    repeat 3 { forward 100 cm; turn right 120° }
    Which shape does it draw?     (a) hexagon (b) square (c) octagon (d) triangle
  25. 25.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 15 cm; turn right ?° }
    What number goes in place of “?”
  26. 26.🔁 A drawing robot runs:
    repeat 2 { forward 40 cm; turn right 90°; forward 35 cm; turn right 90° }
    How many cm does it drive in all?
  27. 27.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 90 cm; turn right ?° }
    What number goes in place of “?”
  28. 28.🔁 A drawing robot runs:
    repeat 3 { forward 30 cm; turn right 120° }
    Which shape does it draw?     (a) pentagon (b) triangle (c) octagon (d) square
  29. 29.🔁 A drawing robot runs:
    repeat 2 { forward 15 cm; turn right 90°; forward 25 cm; turn right 90° }
    How many cm does it drive in all?
  30. 30.🔁 A drawing robot runs:
    repeat 4 { forward 25 cm; turn right 90° }
    How many cm does it drive in all?
  31. 31.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 40 cm; turn right ?° }
    What number goes in place of “?”
  32. 32.🔁 A drawing robot runs:
    repeat 6 { forward 100 cm; turn right 60° }
    How many cm does it drive in all?
  33. 33.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  34. 34.🔁 A drawing robot runs:
    repeat 5 { forward 60 cm; turn right 72° }
    How many cm does it drive in all?
  35. 35.🔁 A robot must draw a regular hexagon (6 equal sides):
    repeat 6 { forward 65 cm; turn right ?° }
    What number goes in place of “?”
  36. 36.🔁 A drawing robot runs:
    repeat 5 { forward 25 cm; turn right 72° }
    Which shape does it draw?     (a) hexagon (b) pentagon (c) octagon (d) triangle
  37. 37.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 65 cm; turn right ?° }
    What number goes in place of “?”
  38. 38.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 45 cm; turn right ?° }
    What number goes in place of “?”
  39. 39.🔁 A drawing robot runs:
    repeat 3 { forward 45 cm; turn right 120° }
    How many cm does it drive in all?
  40. 40.🔁 A drawing robot runs:
    repeat 2 { forward 45 cm; turn right 90°; forward 45 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?

Answer key

  1. 45
  2. the same steps repeat
  3. 72
  4. 360°
  5. 80
  6. 300
  7. 360 ÷ n degrees
  8. 120
  9. 90
  10. 1125
  11. 400
  12. 300
  13. 240
  14. 90
  15. 200
  16. 160
  17. 100
  18. pentagon
  19. square
  20. octagon
  21. 60
  22. 80
  23. 300
  24. triangle
  25. 120
  26. 150
  27. 120
  28. triangle
  29. 80
  30. 100
  31. 45
  32. 600
  33. 480
  34. 300
  35. 60
  36. pentagon
  37. 72
  38. 45
  39. 135
  40. 2025

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