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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 255 · 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.🔁 Why do we use a loop to draw a square? (a) loops are colourful (b) the same steps repeat (c) to make it crash (d) squares need 5 sides
  2. 2.🔁 How many sides does a hexagon have? (a) 6 (b) 5 (c) 8 (d) 7
  3. 3.🔁 A drawing robot runs:
    repeat 4 { forward 95 cm; turn right 90° }
    How many cm does it drive in all?
  4. 4.🔁 A drawing robot runs:
    repeat 4 { forward 70 cm; turn right 90° }
    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 drawing robot runs:
    repeat 5 { forward 10 cm; turn right 72° }
    Which shape does it draw?
    (a) square (b) octagon (c) pentagon (d) hexagon
  7. 7.🔁 A drawing robot runs:
    repeat 6 { forward 70 cm; turn right 60° }
    Which shape does it draw?
    (a) square (b) octagon (c) hexagon (d) pentagon
  8. 8.🔁 A drawing robot runs:
    repeat 2 { forward 60 cm; turn right 90°; forward 25 cm; turn right 90° }
    How many cm does it drive in all?
  9. 9.🔁 A drawing robot runs:
    repeat 5 { forward 55 cm; turn right 72° }
    How many cm does it drive in all?
  10. 10.🔁 For a regular shape with n sides, each turn is … (a) n × 360 degrees (b) 180 degrees always (c) 90 degrees always (d) 360 ÷ n degrees
  11. 11.🔁 A drawing robot runs:
    repeat 8 { forward 40 cm; turn right 45° }
    How many cm does it drive in all?
  12. 12.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 25 cm; turn right ?° }
    What number goes in place of “?”
  13. 13.🔁 A drawing robot runs:
    repeat 3 { forward 75 cm; turn right 120° }
    How many cm does it drive in all?
  14. 14.🔁 A drawing robot runs:
    repeat 4 { forward 80 cm; turn right 90° }
    Which shape does it draw?
    (a) square (b) octagon (c) hexagon (d) pentagon
  15. 15.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 35 cm; turn right ?° }
    What number goes in place of “?”
  16. 16.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  17. 17.🔁 A robot must draw a regular hexagon (6 equal sides):
    repeat 6 { forward 15 cm; turn right ?° }
    What number goes in place of “?”
  18. 18.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  19. 19.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  20. 20.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  21. 21.🔁 A drawing robot runs:
    repeat 5 { forward 70 cm; turn right 72° }
    How many cm does it drive in all?
  22. 22.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 70 cm; turn right ?° }
    What number goes in place of “?”
  23. 23.🔁 A drawing robot runs:
    repeat 2 { forward 55 cm; turn right 90°; forward 20 cm; turn right 90° }
    How many cm does it drive in all?
  24. 24.🔁 A drawing robot runs:
    repeat 2 { forward 45 cm; turn right 90°; forward 45 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  25. 25.🔁 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)?
  26. 26.🔁 A drawing robot runs:
    repeat 3 { forward 60 cm; turn right 120° }
    Which shape does it draw?
    (a) octagon (b) square (c) hexagon (d) triangle
  27. 27.🔁 A drawing robot runs:
    repeat 5 { forward 60 cm; turn right 72° }
    Which shape does it draw?
    (a) triangle (b) octagon (c) pentagon (d) square
  28. 28.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  29. 29.🔁 A drawing robot runs:
    repeat 5 { forward 25 cm; turn right 72° }
    Which shape does it draw?
    (a) pentagon (b) hexagon (c) octagon (d) triangle
  30. 30.🔁 A drawing robot runs:
    repeat 2 { forward 45 cm; turn right 90°; forward 60 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 90 cm; turn right 72° }
    Which shape does it draw?
    (a) pentagon (b) octagon (c) triangle (d) square
  32. 32.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  33. 33.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  34. 34.🔁 To draw any closed regular shape, a robot turns how many degrees in all? (a) 360° (b) 720° (c) 180° (d) 90°
  35. 35.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  36. 36.🔁 A drawing robot runs:
    repeat 4 { forward 40 cm; turn right 90° }
    Which shape does it draw?
    (a) octagon (b) triangle (c) square (d) hexagon
  37. 37.🔁 A drawing robot runs:
    repeat 3 { forward 30 cm; turn right 120° }
    How many cm does it drive in all?
  38. 38.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 80 cm; turn right ?° }
    What number goes in place of “?”
  39. 39.🔁 A drawing robot runs:
    repeat 3 { forward 100 cm; turn right 120° }
    How many cm does it drive in all?
  40. 40.🔁 A drawing robot runs:
    repeat 8 { forward 25 cm; turn right 45° }
    Which shape does it draw?
    (a) octagon (b) square (c) triangle (d) hexagon

Answer key

  1. the same steps repeat
  2. 6
  3. 380
  4. 280
  5. 500
  6. pentagon
  7. hexagon
  8. 170
  9. 275
  10. 360 ÷ n degrees
  11. 320
  12. 90
  13. 225
  14. square
  15. 120
  16. 40
  17. 60
  18. 160
  19. 360
  20. 180
  21. 350
  22. 45
  23. 150
  24. 2025
  25. 825
  26. triangle
  27. pentagon
  28. 300
  29. pentagon
  30. 2700
  31. pentagon
  32. 160
  33. 240
  34. 360°
  35. 60
  36. square
  37. 90
  38. 45
  39. 300
  40. octagon

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