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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 54 · 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 5 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  2. 2.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  3. 3.🔁 A drawing robot runs:
    repeat 5 { forward 90 cm; turn right 72° }
    Which shape does it draw?
    (a) square (b) pentagon (c) octagon (d) hexagon
  4. 4.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 75 cm; turn right ?° }
    What number goes in place of “?”
  5. 5.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  6. 6.🔁 Why do we use a loop to draw a square? (a) the same steps repeat (b) squares need 5 sides (c) to make it crash (d) loops are colourful
  7. 7.🔁 A drawing robot runs:
    repeat 3 { forward 15 cm; turn right 120° }
    Which shape does it draw?
    (a) octagon (b) square (c) triangle (d) pentagon
  8. 8.🔁 A drawing robot runs:
    repeat 2 { forward 10 cm; turn right 90°; forward 15 cm; turn right 90° }
    How many cm does it drive in all?
  9. 9.🔁 A drawing robot runs:
    repeat 4 { forward 50 cm; turn right 90° }
    How many cm does it drive in all?
  10. 10.🔁 A drawing robot runs:
    repeat 6 { forward 50 cm; turn right 60° }
    How many cm does it drive in all?
  11. 11.🔁 To draw any closed regular shape, a robot turns how many degrees in all? (a) 90° (b) 360° (c) 180° (d) 720°
  12. 12.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  13. 13.🔁 A drawing robot runs:
    repeat 4 { forward 35 cm; turn right 90° }
    Which shape does it draw?
    (a) pentagon (b) square (c) hexagon (d) octagon
  14. 14.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  15. 15.🔁 A drawing robot runs:
    repeat 3 { forward 35 cm; turn right 120° }
    Which shape does it draw?
    (a) square (b) octagon (c) pentagon (d) triangle
  16. 16.🔁 A drawing robot runs:
    repeat 8 { forward 20 cm; turn right 45° }
    How many cm does it drive in all?
  17. 17.🔁 A drawing robot runs:
    repeat 6 { forward 20 cm; turn right 60° }
    Which shape does it draw?
    (a) octagon (b) hexagon (c) triangle (d) square
  18. 18.🔁 A drawing robot runs:
    repeat 5 { forward 45 cm; turn right 72° }
    Which shape does it draw?
    (a) square (b) hexagon (c) pentagon (d) octagon
  19. 19.🔁 A drawing robot runs:
    repeat 2 { forward 55 cm; turn right 90°; forward 45 cm; turn right 90° }
    How many cm does it drive in all?
  20. 20.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 90 cm; turn right ?° }
    What number goes in place of “?”
  21. 21.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 30 cm; turn right ?° }
    What number goes in place of “?”
  22. 22.🔁 A drawing robot runs:
    repeat 3 { forward 50 cm; turn right 120° }
    Which shape does it draw?
    (a) square (b) hexagon (c) triangle (d) pentagon
  23. 23.🔁 How many sides does a hexagon have? (a) 7 (b) 8 (c) 6 (d) 5
  24. 24.🔁 A robot must draw a regular hexagon (6 equal sides):
    repeat 6 { forward 100 cm; turn right ?° }
    What number goes in place of “?”
  25. 25.🔁 A drawing robot runs:
    repeat 4 { forward 100 cm; turn right 90° }
    How many cm does it drive in all?
  26. 26.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 95 cm; turn right ?° }
    What number goes in place of “?”
  27. 27.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  28. 28.🔁 A drawing robot runs:
    repeat 8 { forward 100 cm; turn right 45° }
    Which shape does it draw?
    (a) octagon (b) square (c) pentagon (d) hexagon
  29. 29.🔁 A drawing robot runs:
    repeat 2 { forward 30 cm; turn right 90°; forward 40 cm; turn right 90° }
    How many cm does it drive in all?
  30. 30.🔁 A drawing robot runs:
    repeat 8 { forward 70 cm; turn right 45° }
    How many cm does it drive in all?
  31. 31.🔁 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)?
  32. 32.🔁 A drawing robot runs:
    repeat 2 { forward 45 cm; turn right 90°; forward 30 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  33. 33.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  34. 34.🔁 A drawing robot runs:
    repeat 4 { forward 15 cm; turn right 90° }
    Which shape does it draw?
    (a) triangle (b) octagon (c) square (d) pentagon
  35. 35.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  36. 36.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  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 robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 55 cm; turn right ?° }
    What number goes in place of “?”
  39. 39.🔁 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
  40. 40.🔁 A robot must draw a regular hexagon (6 equal sides):
    repeat 6 { forward 50 cm; turn right ?° }
    What number goes in place of “?”

Answer key

  1. 400
  2. 240
  3. pentagon
  4. 120
  5. 120
  6. the same steps repeat
  7. triangle
  8. 50
  9. 200
  10. 300
  11. 360°
  12. 400
  13. square
  14. 200
  15. triangle
  16. 160
  17. hexagon
  18. pentagon
  19. 200
  20. 45
  21. 120
  22. triangle
  23. 6
  24. 60
  25. 400
  26. 120
  27. 300
  28. octagon
  29. 140
  30. 560
  31. 1125
  32. 1350
  33. 120
  34. square
  35. 320
  36. 200
  37. 600
  38. 72
  39. 360 ÷ n degrees
  40. 60

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