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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 11 · 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.🔁 To draw any closed regular shape, a robot turns how many degrees in all? (a) 720° (b) 90° (c) 360° (d) 180°
  2. 2.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  3. 3.🔁 A drawing robot runs:
    repeat 2 { forward 60 cm; turn right 90°; forward 60 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  4. 4.🔁 A drawing robot runs:
    repeat 4 { forward 90 cm; turn right 90° }
    How many cm does it drive in all?
  5. 5.🔁 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?
  6. 6.🔁 A drawing robot runs:
    repeat 6 { forward 25 cm; turn right 60° }
    Which shape does it draw?     (a) pentagon (b) triangle (c) hexagon (d) square
  7. 7.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 70 cm; turn right ?° }
    What number goes in place of “?”
  8. 8.🔁 For a regular shape with n sides, each turn is … (a) 360 ÷ n degrees (b) 90 degrees always (c) 180 degrees always (d) n × 360 degrees
  9. 9.🔁 Why do we use a loop to draw a square? (a) the same steps repeat (b) to make it crash (c) loops are colourful (d) squares need 5 sides
  10. 10.🔁 A drawing robot runs:
    repeat 2 { forward 35 cm; turn right 90°; forward 20 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  11. 11.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 20 cm; turn right ?° }
    What number goes in place of “?”
  12. 12.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 35 cm; turn right ?° }
    What number goes in place of “?”
  13. 13.🔁 A drawing robot runs:
    repeat 2 { forward 20 cm; turn right 90°; forward 10 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  14. 14.🔁 A drawing robot runs:
    repeat 5 { forward 95 cm; turn right 72° }
    How many cm does it drive in all?
  15. 15.🔁 A drawing robot runs:
    repeat 2 { forward 15 cm; turn right 90°; forward 15 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  16. 16.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 40 cm; turn right ?° }
    What number goes in place of “?”
  17. 17.🔁 A drawing robot runs:
    repeat 6 { forward 30 cm; turn right 60° }
    Which shape does it draw?     (a) hexagon (b) pentagon (c) triangle (d) octagon
  18. 18.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  19. 19.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 30 cm; turn right ?° }
    What number goes in place of “?”
  20. 20.🔁 A drawing robot runs:
    repeat 3 { forward 15 cm; turn right 120° }
    Which shape does it draw?     (a) triangle (b) pentagon (c) hexagon (d) square
  21. 21.🔁 A drawing robot runs:
    repeat 5 { forward 80 cm; turn right 72° }
    Which shape does it draw?     (a) pentagon (b) hexagon (c) square (d) triangle
  22. 22.🔁 A drawing robot runs:
    repeat 6 { forward 65 cm; turn right 60° }
    How many cm does it drive in all?
  23. 23.🔁 A drawing robot runs:
    repeat 2 { forward 15 cm; turn right 90°; forward 55 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  24. 24.🔁 A drawing robot runs:
    repeat 4 { forward 65 cm; turn right 90° }
    Which shape does it draw?     (a) triangle (b) pentagon (c) square (d) hexagon
  25. 25.🔁 A drawing robot runs:
    repeat 2 { forward 40 cm; turn right 90°; forward 25 cm; turn right 90° }
    How many cm does it drive in all?
  26. 26.🔁 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?
  27. 27.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 25 cm; turn right ?° }
    What number goes in place of “?”
  28. 28.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  29. 29.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  30. 30.🔁 A drawing robot runs:
    repeat 3 { forward 80 cm; turn right 120° }
    How many cm does it drive in all?
  31. 31.🔁 A drawing robot runs:
    repeat 2 { forward 35 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 8 { forward 10 cm; turn right 45° }
    Which shape does it draw?     (a) hexagon (b) square (c) octagon (d) pentagon
  33. 33.🔁 A drawing robot runs:
    repeat 2 { forward 10 cm; turn right 90°; forward 60 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  34. 34.🔁 A drawing robot runs:
    repeat 2 { forward 35 cm; turn right 90°; forward 50 cm; turn right 90° }
    How many cm does it drive in all?
  35. 35.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 100 cm; turn right ?° }
    What number goes in place of “?”
  36. 36.🔁 A drawing robot runs:
    repeat 5 { forward 45 cm; turn right 72° }
    Which shape does it draw?     (a) square (b) triangle (c) pentagon (d) hexagon
  37. 37.🔁 A drawing robot runs:
    repeat 6 { forward 45 cm; turn right 60° }
    How many cm does it drive in all?
  38. 38.🔁 A drawing robot runs:
    repeat 2 { forward 25 cm; turn right 90°; forward 15 cm; turn right 90° }
    How many cm does it drive in all?
  39. 39.🔁 A drawing robot runs:
    repeat 8 { forward 25 cm; turn right 45° }
    How many cm does it drive in all?
  40. 40.🔁 A drawing robot runs:
    repeat 3 { forward 40 cm; turn right 120° }
    Which shape does it draw?     (a) triangle (b) pentagon (c) hexagon (d) octagon

Answer key

  1. 360°
  2. 320
  3. 3600
  4. 360
  5. 120
  6. hexagon
  7. 120
  8. 360 ÷ n degrees
  9. the same steps repeat
  10. 700
  11. 72
  12. 120
  13. 200
  14. 475
  15. 225
  16. 90
  17. hexagon
  18. 80
  19. 90
  20. triangle
  21. pentagon
  22. 390
  23. 825
  24. square
  25. 130
  26. 140
  27. 72
  28. 200
  29. 240
  30. 240
  31. 1575
  32. octagon
  33. 600
  34. 170
  35. 90
  36. pentagon
  37. 270
  38. 80
  39. 200
  40. triangle

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