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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 18 · 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.🔁 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
  2. 2.🔁 A drawing robot runs:
    repeat 5 { forward 50 cm; turn right 72° }
    Which shape does it draw?
    (a) octagon (b) triangle (c) hexagon (d) pentagon
  3. 3.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 65 cm; turn right ?° }
    What number goes in place of “?”
  4. 4.🔁 How many sides does a hexagon have? (a) 5 (b) 8 (c) 7 (d) 6
  5. 5.🔁 To draw any closed regular shape, a robot turns how many degrees in all? (a) 90° (b) 360° (c) 720° (d) 180°
  6. 6.🔁 A drawing robot runs:
    repeat 5 { forward 25 cm; turn right 72° }
    Which shape does it draw?
    (a) octagon (b) pentagon (c) hexagon (d) square
  7. 7.🔁 A drawing robot runs:
    repeat 5 { forward 70 cm; turn right 72° }
    Which shape does it draw?
    (a) pentagon (b) hexagon (c) octagon (d) triangle
  8. 8.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  9. 9.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  10. 10.🔁 A drawing robot runs:
    repeat 2 { forward 35 cm; turn right 90°; forward 55 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  11. 11.🔁 A drawing robot runs:
    repeat 5 { forward 100 cm; turn right 72° }
    Which shape does it draw?
    (a) hexagon (b) pentagon (c) square (d) octagon
  12. 12.🔁 Why do we use a loop to draw a square? (a) loops are colourful (b) the same steps repeat (c) squares need 5 sides (d) to make it crash
  13. 13.🔁 A drawing robot runs:
    repeat 4 { forward 70 cm; turn right 90° }
    How many cm does it drive in all?
  14. 14.🔁 A drawing robot runs:
    repeat 8 { forward 10 cm; turn right 45° }
    How many cm does it drive in all?
  15. 15.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 100 cm; turn right ?° }
    What number goes in place of “?”
  16. 16.🔁 A drawing robot runs:
    repeat 2 { forward 25 cm; turn right 90°; forward 45 cm; turn right 90° }
    How many cm does it drive in all?
  17. 17.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  18. 18.🔁 A drawing robot runs:
    repeat 8 { forward 75 cm; turn right 45° }
    How many cm does it drive in all?
  19. 19.🔁 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)?
  20. 20.🔁 A drawing robot runs:
    repeat 8 { forward 95 cm; turn right 45° }
    How many cm does it drive in all?
  21. 21.🔁 A drawing robot runs:
    repeat 5 { forward 55 cm; turn right 72° }
    Which shape does it draw?
    (a) square (b) hexagon (c) pentagon (d) triangle
  22. 22.🔁 A drawing robot runs:
    repeat 2 { forward 15 cm; turn right 90°; forward 40 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  23. 23.🔁 A robot must draw a regular hexagon (6 equal sides):
    repeat 6 { forward 10 cm; turn right ?° }
    What number goes in place of “?”
  24. 24.🔁 A drawing robot runs:
    repeat 3 { forward 60 cm; turn right 120° }
    Which shape does it draw?
    (a) octagon (b) triangle (c) square (d) pentagon
  25. 25.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  26. 26.🔁 A robot must draw a regular hexagon (6 equal sides):
    repeat 6 { forward 70 cm; turn right ?° }
    What number goes in place of “?”
  27. 27.🔁 A drawing robot runs:
    repeat 5 { forward 90 cm; turn right 72° }
    Which shape does it draw?
    (a) pentagon (b) square (c) octagon (d) triangle
  28. 28.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  29. 29.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  30. 30.🔁 A drawing robot runs:
    repeat 2 { forward 45 cm; turn right 90°; forward 25 cm; turn right 90° }
    How many cm does it drive in all?
  31. 31.🔁 A drawing robot runs:
    repeat 8 { forward 45 cm; turn right 45° }
    How many cm does it drive in all?
  32. 32.🔁 A drawing robot runs:
    repeat 3 { forward 85 cm; turn right 120° }
    How many cm does it drive in all?
  33. 33.🔁 A drawing robot runs:
    repeat 6 { forward 70 cm; turn right 60° }
    Which shape does it draw?
    (a) square (b) triangle (c) octagon (d) hexagon
  34. 34.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  35. 35.🔁 A drawing robot runs:
    repeat 2 { forward 20 cm; turn right 90°; forward 55 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  36. 36.🔁 A drawing robot runs:
    repeat 8 { forward 40 cm; turn right 45° }
    Which shape does it draw?
    (a) octagon (b) triangle (c) pentagon (d) hexagon
  37. 37.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 30 cm; turn right 90° } }
    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) octagon (b) triangle (c) pentagon (d) square
  39. 39.🔁 A drawing robot runs:
    repeat 5 { forward 15 cm; turn right 72° }
    Which shape does it draw?
    (a) pentagon (b) triangle (c) octagon (d) hexagon
  40. 40.🔁 A drawing robot runs:
    repeat 2 { forward 45 cm; turn right 90°; forward 50 cm; turn right 90° }
    How many cm does it drive in all?

Answer key

  1. 360 ÷ n degrees
  2. pentagon
  3. 90
  4. 6
  5. 360°
  6. pentagon
  7. pentagon
  8. 400
  9. 200
  10. 1925
  11. pentagon
  12. the same steps repeat
  13. 280
  14. 80
  15. 120
  16. 140
  17. 200
  18. 600
  19. 625
  20. 760
  21. pentagon
  22. 600
  23. 60
  24. triangle
  25. 120
  26. 60
  27. pentagon
  28. 180
  29. 360
  30. 140
  31. 360
  32. 255
  33. hexagon
  34. 100
  35. 1100
  36. octagon
  37. 600
  38. square
  39. pentagon
  40. 190

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