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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 208 · 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 { forward 65 cm; turn right 72° }
    How many cm does it drive in all?
  2. 2.🔁 A drawing robot runs:
    repeat 3 { forward 20 cm; turn right 120° }
    How many cm does it drive in all?
  3. 3.🔁 How many sides does a hexagon have? (a) 5 (b) 6 (c) 7 (d) 8
  4. 4.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 35 cm; turn right ?° }
    What number goes in place of “?”
  5. 5.🔁 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?
  6. 6.🔁 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?
  7. 7.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  8. 8.🔁 A drawing robot runs:
    repeat 2 { forward 25 cm; turn right 90°; forward 40 cm; turn right 90° }
    How many cm does it drive in all?
  9. 9.🔁 A drawing robot runs:
    repeat 4 { forward 85 cm; turn right 90° }
    How many cm does it drive in all?
  10. 10.🔁 Why do we use a loop to draw a square? (a) squares need 5 sides (b) loops are colourful (c) to make it crash (d) the same steps repeat
  11. 11.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 10 cm; turn right ?° }
    What number goes in place of “?”
  12. 12.🔁 A robot must draw a regular hexagon (6 equal sides):
    repeat 6 { forward 75 cm; turn right ?° }
    What number goes in place of “?”
  13. 13.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 55 cm; turn right ?° }
    What number goes in place of “?”
  14. 14.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 25 cm; turn right ?° }
    What number goes in place of “?”
  15. 15.🔁 For a regular shape with n sides, each turn is … (a) n × 360 degrees (b) 180 degrees always (c) 360 ÷ n degrees (d) 90 degrees always
  16. 16.🔁 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)?
  17. 17.🔁 A drawing robot runs:
    repeat 8 { forward 45 cm; turn right 45° }
    Which shape does it draw?     (a) octagon (b) square (c) triangle (d) hexagon
  18. 18.🔁 A drawing robot runs:
    repeat 2 { forward 35 cm; turn right 90°; forward 10 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  19. 19.🔁 A drawing robot runs:
    repeat 4 { forward 30 cm; turn right 90° }
    Which shape does it draw?     (a) octagon (b) triangle (c) square (d) pentagon
  20. 20.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  21. 21.🔁 A drawing robot runs:
    repeat 4 { forward 45 cm; turn right 90° }
    Which shape does it draw?     (a) square (b) triangle (c) hexagon (d) pentagon
  22. 22.🔁 A drawing robot runs:
    repeat 3 { forward 20 cm; turn right 120° }
    Which shape does it draw?     (a) octagon (b) triangle (c) square (d) hexagon
  23. 23.🔁 A drawing robot runs:
    repeat 2 { forward 25 cm; turn right 90°; forward 40 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  24. 24.🔁 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?
  25. 25.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 45 cm; turn right ?° }
    What number goes in place of “?”
  26. 26.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 20 cm; turn right ?° }
    What number goes in place of “?”
  27. 27.🔁 A drawing robot runs:
    repeat 5 { forward 55 cm; turn right 72° }
    Which shape does it draw?     (a) triangle (b) square (c) pentagon (d) octagon
  28. 28.🔁 A drawing robot runs:
    repeat 6 { forward 35 cm; turn right 60° }
    Which shape does it draw?     (a) octagon (b) hexagon (c) pentagon (d) triangle
  29. 29.🔁 A drawing robot runs:
    repeat 2 { forward 50 cm; turn right 90°; forward 50 cm; turn right 90° }
    How many cm does it drive in all?
  30. 30.🔁 A drawing robot runs:
    repeat 2 { forward 15 cm; turn right 90°; forward 45 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  31. 31.🔁 A drawing robot runs:
    repeat 5 { forward 75 cm; turn right 72° }
    How many cm does it drive in all?
  32. 32.🔁 A drawing robot runs:
    repeat 2 { forward 45 cm; turn right 90°; forward 15 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  33. 33.🔁 A drawing robot runs:
    repeat 3 { forward 70 cm; turn right 120° }
    Which shape does it draw?     (a) square (b) triangle (c) octagon (d) hexagon
  34. 34.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 50 cm; turn right ?° }
    What number goes in place of “?”
  35. 35.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  36. 36.🔁 A drawing robot runs:
    repeat 5 { forward 45 cm; turn right 72° }
    Which shape does it draw?     (a) pentagon (b) octagon (c) square (d) hexagon
  37. 37.🔁 A drawing robot runs:
    repeat 8 { forward 10 cm; turn right 45° }
    How many cm does it drive in all?
  38. 38.🔁 A drawing robot runs:
    repeat 2 { forward 20 cm; turn right 90°; forward 40 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  39. 39.🔁 A drawing robot runs:
    repeat 5 { forward 10 cm; turn right 72° }
    How many cm does it drive in all?
  40. 40.🔁 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?

Answer key

  1. 325
  2. 60
  3. 6
  4. 72
  5. 80
  6. 190
  7. 240
  8. 130
  9. 340
  10. the same steps repeat
  11. 72
  12. 60
  13. 120
  14. 72
  15. 360 ÷ n degrees
  16. 400
  17. octagon
  18. 350
  19. square
  20. 320
  21. square
  22. triangle
  23. 1000
  24. 70
  25. 72
  26. 72
  27. pentagon
  28. hexagon
  29. 200
  30. 675
  31. 375
  32. 675
  33. triangle
  34. 45
  35. 120
  36. pentagon
  37. 80
  38. 800
  39. 50
  40. 50

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