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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 106 · 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 drawing robot runs:
    repeat 2 { forward 25 cm; turn right 90°; forward 15 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  2. 2.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  3. 3.🔁 To draw any closed regular shape, a robot turns how many degrees in all? (a) 90° (b) 180° (c) 720° (d) 360°
  4. 4.🔁 A drawing robot runs:
    repeat 5 { forward 90 cm; turn right 72° }
    How many cm does it drive in all?
  5. 5.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  6. 6.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 95 cm; turn right ?° }
    What number goes in place of “?”
  7. 7.🔁 A drawing robot runs:
    repeat 5 { forward 15 cm; turn right 72° }
    Which shape does it draw?     (a) octagon (b) triangle (c) pentagon (d) square
  8. 8.🔁 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?
  9. 9.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 30 cm; turn right ?° }
    What number goes in place of “?”
  10. 10.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 40 cm; turn right ?° }
    What number goes in place of “?”
  11. 11.🔁 A drawing robot runs:
    repeat 4 { forward 100 cm; turn right 90° }
    How many cm does it drive in all?
  12. 12.🔁 A drawing robot runs:
    repeat 8 { forward 100 cm; turn right 45° }
    Which shape does it draw?     (a) square (b) octagon (c) pentagon (d) hexagon
  13. 13.🔁 A drawing robot runs:
    repeat 5 { forward 35 cm; turn right 72° }
    Which shape does it draw?     (a) hexagon (b) square (c) octagon (d) pentagon
  14. 14.🔁 A drawing robot runs:
    repeat 2 { forward 20 cm; turn right 90°; forward 15 cm; turn right 90° }
    How many cm does it drive in all?
  15. 15.🔁 A drawing robot runs:
    repeat 2 { forward 30 cm; turn right 90°; forward 55 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  16. 16.🔁 A drawing robot runs:
    repeat 4 { forward 25 cm; turn right 90° }
    How many cm does it drive in all?
  17. 17.🔁 A drawing robot runs:
    repeat 6 { forward 95 cm; turn right 60° }
    Which shape does it draw?     (a) octagon (b) hexagon (c) pentagon (d) triangle
  18. 18.🔁 A drawing robot runs:
    repeat 5 { forward 20 cm; turn right 72° }
    How many cm does it drive in all?
  19. 19.🔁 A drawing robot runs:
    repeat 8 { forward 30 cm; turn right 45° }
    How many cm does it drive in all?
  20. 20.🔁 A drawing robot runs:
    repeat 8 { forward 30 cm; turn right 45° }
    Which shape does it draw?     (a) triangle (b) square (c) octagon (d) pentagon
  21. 21.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  22. 22.🔁 A drawing robot runs:
    repeat 3 { forward 70 cm; turn right 120° }
    Which shape does it draw?     (a) octagon (b) hexagon (c) pentagon (d) triangle
  23. 23.🔁 A drawing robot runs:
    repeat 3 { forward 80 cm; turn right 120° }
    Which shape does it draw?     (a) triangle (b) square (c) hexagon (d) octagon
  24. 24.🔁 A drawing robot runs:
    repeat 2 { forward 10 cm; turn right 90°; forward 40 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  25. 25.🔁 A drawing robot runs:
    repeat 3 { forward 45 cm; turn right 120° }
    Which shape does it draw?     (a) pentagon (b) triangle (c) octagon (d) square
  26. 26.🔁 A drawing robot runs:
    repeat 5 { forward 60 cm; turn right 72° }
    How many cm does it drive in all?
  27. 27.🔁 Why do we use a loop to draw a square? (a) to make it crash (b) squares need 5 sides (c) loops are colourful (d) the same steps repeat
  28. 28.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  29. 29.🔁 A drawing robot runs:
    repeat 8 { forward 100 cm; turn right 45° }
    How many cm does it drive in all?
  30. 30.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  31. 31.🔁 A drawing robot runs:
    repeat 8 { forward 90 cm; turn right 45° }
    Which shape does it draw?     (a) pentagon (b) hexagon (c) triangle (d) octagon
  32. 32.🔁 For a regular shape with n sides, each turn is … (a) 180 degrees always (b) 360 ÷ n degrees (c) n × 360 degrees (d) 90 degrees always
  33. 33.🔁 A drawing robot runs:
    repeat 2 { forward 50 cm; turn right 90°; forward 10 cm; turn right 90° }
    How many cm does it drive in all?
  34. 34.🔁 A drawing robot runs:
    repeat 3 { forward 45 cm; turn right 120° }
    How many cm does it drive in all?
  35. 35.🔁 A drawing robot runs:
    repeat 3 { forward 25 cm; turn right 120° }
    How many cm does it drive in all?
  36. 36.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  37. 37.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  38. 38.🔁 A drawing robot runs:
    repeat 5 { forward 25 cm; turn right 72° }
    Which shape does it draw?     (a) pentagon (b) hexagon (c) triangle (d) square
  39. 39.🔁 A drawing robot runs:
    repeat 8 { forward 10 cm; turn right 45° }
    Which shape does it draw?     (a) octagon (b) triangle (c) square (d) hexagon
  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. 375
  2. 60
  3. 360°
  4. 450
  5. 500
  6. 90
  7. pentagon
  8. 160
  9. 120
  10. 72
  11. 400
  12. octagon
  13. pentagon
  14. 70
  15. 1650
  16. 100
  17. hexagon
  18. 100
  19. 240
  20. octagon
  21. 480
  22. triangle
  23. triangle
  24. 400
  25. triangle
  26. 300
  27. the same steps repeat
  28. 40
  29. 800
  30. 180
  31. octagon
  32. 360 ÷ n degrees
  33. 120
  34. 135
  35. 75
  36. 160
  37. 300
  38. pentagon
  39. octagon
  40. 180

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