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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 201 · 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.

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  1. 1.🔁 Why do we use a loop to draw a square? (a) to make it crash (b) loops are colourful (c) squares need 5 sides (d) the same steps repeat
  2. 2.🔁 A drawing robot runs:
    repeat 8 { forward 95 cm; turn right 45° }
    Which shape does it draw?     (a) triangle (b) square (c) octagon (d) hexagon
  3. 3.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 85 cm; turn right ?° }
    What number goes in place of “?”
  4. 4.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  5. 5.🔁 A drawing robot runs:
    repeat 6 { forward 20 cm; turn right 60° }
    Which shape does it draw?     (a) pentagon (b) hexagon (c) octagon (d) square
  6. 6.🔁 A drawing robot runs:
    repeat 8 { forward 20 cm; turn right 45° }
    How many cm does it drive in all?
  7. 7.🔁 A drawing robot runs:
    repeat 5 { forward 65 cm; turn right 72° }
    Which shape does it draw?     (a) pentagon (b) triangle (c) hexagon (d) square
  8. 8.🔁 A drawing robot runs:
    repeat 2 { forward 60 cm; turn right 90°; forward 40 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  9. 9.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  10. 10.🔁 A drawing robot runs:
    repeat 5 { forward 35 cm; turn right 72° }
    Which shape does it draw?     (a) octagon (b) triangle (c) hexagon (d) pentagon
  11. 11.🔁 To draw any closed regular shape, a robot turns how many degrees in all? (a) 720° (b) 360° (c) 90° (d) 180°
  12. 12.🔁 How many sides does a hexagon have? (a) 6 (b) 8 (c) 7 (d) 5
  13. 13.🔁 A drawing robot runs:
    repeat 2 { forward 40 cm; turn right 90°; forward 20 cm; turn right 90° }
    How many cm does it drive in all?
  14. 14.🔁 A drawing robot runs:
    repeat 6 { forward 85 cm; turn right 60° }
    How many cm does it drive in all?
  15. 15.🔁 A drawing robot runs:
    repeat 4 { forward 25 cm; turn right 90° }
    How many cm does it drive in all?
  16. 16.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 10 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 25 cm; turn right 90° }
    How many cm does it drive in all?
  18. 18.🔁 A drawing robot runs:
    repeat 3 { forward 65 cm; turn right 120° }
    Which shape does it draw?     (a) pentagon (b) octagon (c) triangle (d) square
  19. 19.🔁 A drawing robot runs:
    repeat 8 { forward 95 cm; turn right 45° }
    How many cm does it drive in all?
  20. 20.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  21. 21.🔁 A drawing robot runs:
    repeat 2 { forward 60 cm; turn right 90°; forward 35 cm; turn right 90° }
    How many cm does it drive in all?
  22. 22.🔁 A robot must draw a regular hexagon (6 equal sides):
    repeat 6 { forward 10 cm; turn right ?° }
    What number goes in place of “?”
  23. 23.🔁 A drawing robot runs:
    repeat 2 { forward 60 cm; turn right 90°; forward 15 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  24. 24.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 45 cm; turn right ?° }
    What number goes in place of “?”
  25. 25.🔁 A drawing robot runs:
    repeat 4 { forward 45 cm; turn right 90° }
    Which shape does it draw?     (a) hexagon (b) octagon (c) pentagon (d) square
  26. 26.🔁 A drawing robot runs:
    repeat 3 { forward 95 cm; turn right 120° }
    How many cm does it drive in all?
  27. 27.🔁 A drawing robot runs:
    repeat 6 { forward 20 cm; turn right 60° }
    How many cm does it drive in all?
  28. 28.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  29. 29.🔁 A drawing robot runs:
    repeat 2 { forward 15 cm; turn right 90°; forward 30 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  30. 30.🔁 A drawing robot runs:
    repeat 3 { forward 15 cm; turn right 120° }
    How many cm does it drive in all?
  31. 31.🔁 A drawing robot runs:
    repeat 3 { forward 70 cm; turn right 120° }
    Which shape does it draw?     (a) triangle (b) hexagon (c) square (d) octagon
  32. 32.🔁 A drawing robot runs:
    repeat 4 { forward 70 cm; turn right 90° }
    How many cm does it drive in all?
  33. 33.🔁 A drawing robot runs:
    repeat 2 { forward 25 cm; turn right 90°; forward 55 cm; turn right 90° }
    How many cm does it drive in all?
  34. 34.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  35. 35.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  36. 36.🔁 For a regular shape with n sides, each turn is … (a) 90 degrees always (b) n × 360 degrees (c) 360 ÷ n degrees (d) 180 degrees always
  37. 37.🔁 A drawing robot runs:
    repeat 3 { forward 55 cm; turn right 120° }
    How many cm does it drive in all?
  38. 38.🔁 A drawing robot runs:
    repeat 4 { forward 80 cm; turn right 90° }
    Which shape does it draw?     (a) triangle (b) pentagon (c) square (d) octagon
  39. 39.🔁 A drawing robot runs:
    repeat 6 { forward 10 cm; turn right 60° }
    How many cm does it drive in all?
  40. 40.🔁 A drawing robot runs:
    repeat 6 { forward 30 cm; turn right 60° }
    How many cm does it drive in all?

Answer key

  1. the same steps repeat
  2. octagon
  3. 45
  4. 200
  5. hexagon
  6. 160
  7. pentagon
  8. 2400
  9. 80
  10. pentagon
  11. 360°
  12. 6
  13. 120
  14. 510
  15. 100
  16. 120
  17. 90
  18. triangle
  19. 760
  20. 200
  21. 190
  22. 60
  23. 900
  24. 90
  25. square
  26. 285
  27. 120
  28. 120
  29. 450
  30. 45
  31. triangle
  32. 280
  33. 160
  34. 360
  35. 400
  36. 360 ÷ n degrees
  37. 165
  38. square
  39. 60
  40. 180

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