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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 214 · 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 8 { forward 50 cm; turn right 45° }
    Which shape does it draw?     (a) hexagon (b) octagon (c) pentagon (d) triangle
  2. 2.🔁 A drawing robot runs:
    repeat 2 { forward 10 cm; turn right 90°; forward 45 cm; turn right 90° }
    How many cm does it drive in all?
  3. 3.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 10 cm; turn right ?° }
    What number goes in place of “?”
  4. 4.🔁 A drawing robot runs:
    repeat 2 { forward 20 cm; turn right 90°; forward 25 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  5. 5.🔁 A drawing robot runs:
    repeat 6 { forward 20 cm; turn right 60° }
    Which shape does it draw?     (a) pentagon (b) hexagon (c) octagon (d) triangle
  6. 6.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 55 cm; turn right ?° }
    What number goes in place of “?”
  7. 7.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 80 cm; turn right ?° }
    What number goes in place of “?”
  8. 8.🔁 To draw any closed regular shape, a robot turns how many degrees in all? (a) 180° (b) 90° (c) 360° (d) 720°
  9. 9.🔁 A drawing robot runs:
    repeat 2 { forward 60 cm; turn right 90°; forward 15 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  10. 10.🔁 A drawing robot runs:
    repeat 4 { forward 25 cm; turn right 90° }
    How many cm does it drive in all?
  11. 11.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  12. 12.🔁 A drawing robot runs:
    repeat 8 { forward 35 cm; turn right 45° }
    Which shape does it draw?     (a) octagon (b) square (c) triangle (d) hexagon
  13. 13.🔁 How many sides does a hexagon have? (a) 6 (b) 8 (c) 7 (d) 5
  14. 14.🔁 A drawing robot runs:
    repeat 5 { forward 15 cm; turn right 72° }
    Which shape does it draw?     (a) triangle (b) hexagon (c) pentagon (d) octagon
  15. 15.🔁 A drawing robot runs:
    repeat 2 { forward 15 cm; turn right 90°; forward 20 cm; turn right 90° }
    How many cm does it drive in all?
  16. 16.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 30 cm; turn right ?° }
    What number goes in place of “?”
  17. 17.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 80 cm; turn right ?° }
    What number goes in place of “?”
  18. 18.🔁 A drawing robot runs:
    repeat 2 { forward 30 cm; turn right 90°; forward 30 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  19. 19.🔁 A drawing robot runs:
    repeat 3 { forward 65 cm; turn right 120° }
    How many cm does it drive in all?
  20. 20.🔁 A drawing robot runs:
    repeat 2 { forward 30 cm; turn right 90°; forward 55 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  21. 21.🔁 A drawing robot runs:
    repeat 8 { forward 60 cm; turn right 45° }
    How many cm does it drive in all?
  22. 22.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 50 cm; turn right ?° }
    What number goes in place of “?”
  23. 23.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 30 cm; turn right ?° }
    What number goes in place of “?”
  24. 24.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 70 cm; turn right ?° }
    What number goes in place of “?”
  25. 25.🔁 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?
  26. 26.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 50 cm; turn right ?° }
    What number goes in place of “?”
  27. 27.🔁 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)?
  28. 28.🔁 Why do we use a loop to draw a square? (a) the same steps repeat (b) to make it crash (c) squares need 5 sides (d) loops are colourful
  29. 29.🔁 A drawing robot runs:
    repeat 4 { forward 65 cm; turn right 90° }
    Which shape does it draw?     (a) triangle (b) square (c) pentagon (d) hexagon
  30. 30.🔁 A drawing robot runs:
    repeat 6 { forward 10 cm; turn right 60° }
    Which shape does it draw?     (a) pentagon (b) hexagon (c) octagon (d) triangle
  31. 31.🔁 A drawing robot runs:
    repeat 4 { forward 45 cm; turn right 90° }
    Which shape does it draw?     (a) triangle (b) hexagon (c) octagon (d) square
  32. 32.🔁 A drawing robot runs:
    repeat 3 { forward 80 cm; turn right 120° }
    Which shape does it draw?     (a) triangle (b) octagon (c) square (d) pentagon
  33. 33.🔁 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
  34. 34.🔁 A drawing robot runs:
    repeat 5 { forward 75 cm; turn right 72° }
    How many cm does it drive in all?
  35. 35.🔁 A drawing robot runs:
    repeat 6 { forward 15 cm; turn right 60° }
    Which shape does it draw?     (a) triangle (b) pentagon (c) square (d) hexagon
  36. 36.🔁 A drawing robot runs:
    repeat 2 { forward 60 cm; turn right 90°; forward 10 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  37. 37.🔁 A drawing robot runs:
    repeat 5 { forward 70 cm; turn right 72° }
    How many cm does it drive in all?
  38. 38.🔁 A drawing robot runs:
    repeat 3 { forward 30 cm; turn right 120° }
    How many cm does it drive in all?
  39. 39.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  40. 40.🔁 A drawing robot runs:
    repeat 2 { forward 20 cm; turn right 90°; forward 60 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?

Answer key

  1. octagon
  2. 110
  3. 120
  4. 500
  5. hexagon
  6. 72
  7. 90
  8. 360°
  9. 900
  10. 100
  11. 320
  12. octagon
  13. 6
  14. pentagon
  15. 70
  16. 72
  17. 45
  18. 900
  19. 195
  20. 1650
  21. 480
  22. 45
  23. 120
  24. 72
  25. 80
  26. 72
  27. 2025
  28. the same steps repeat
  29. square
  30. hexagon
  31. square
  32. triangle
  33. 360 ÷ n degrees
  34. 375
  35. hexagon
  36. 600
  37. 350
  38. 90
  39. 40
  40. 1200

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