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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 98 · 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.

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

Answer key

  1. 360 ÷ n degrees
  2. pentagon
  3. 45
  4. 60
  5. triangle
  6. octagon
  7. 360°
  8. 6
  9. 120
  10. square
  11. octagon
  12. square
  13. the same steps repeat
  14. 875
  15. 1500
  16. octagon
  17. octagon
  18. 80
  19. 3025
  20. 180
  21. 45
  22. 180
  23. square
  24. 180
  25. 200
  26. hexagon
  27. 120
  28. 72
  29. hexagon
  30. 900
  31. 320
  32. 900
  33. 320
  34. 40
  35. 600
  36. square
  37. 3600
  38. 72
  39. 400
  40. 540

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