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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 83 · 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) the same steps repeat (b) loops are colourful (c) to make it crash (d) squares need 5 sides
  2. 2.🔁 A drawing robot runs:
    repeat 6 { forward 10 cm; turn right 60° }
    Which shape does it draw?     (a) square (b) hexagon (c) octagon (d) pentagon
  3. 3.🔁 A drawing robot runs:
    repeat 8 { forward 80 cm; turn right 45° }
    Which shape does it draw?     (a) square (b) triangle (c) octagon (d) pentagon
  4. 4.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  5. 5.🔁 A drawing robot runs:
    repeat 2 { forward 15 cm; turn right 90°; forward 50 cm; turn right 90° }
    How many cm does it drive in all?
  6. 6.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 100 cm; turn right ?° }
    What number goes in place of “?”
  7. 7.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 25 cm; turn right ?° }
    What number goes in place of “?”
  8. 8.🔁 A drawing robot runs:
    repeat 8 { forward 100 cm; turn right 45° }
    Which shape does it draw?     (a) pentagon (b) triangle (c) octagon (d) square
  9. 9.🔁 A drawing robot runs:
    repeat 2 { forward 40 cm; turn right 90°; forward 15 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  10. 10.🔁 To draw any closed regular shape, a robot turns how many degrees in all? (a) 360° (b) 720° (c) 90° (d) 180°
  11. 11.🔁 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?
  12. 12.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  13. 13.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 85 cm; turn right ?° }
    What number goes in place of “?”
  14. 14.🔁 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
  15. 15.🔁 A drawing robot runs:
    repeat 4 { forward 65 cm; turn right 90° }
    How many cm does it drive in all?
  16. 16.🔁 A drawing robot runs:
    repeat 8 { forward 45 cm; turn right 45° }
    How many cm does it drive in all?
  17. 17.🔁 A drawing robot runs:
    repeat 6 { forward 100 cm; turn right 60° }
    Which shape does it draw?     (a) triangle (b) square (c) octagon (d) hexagon
  18. 18.🔁 A drawing robot runs:
    repeat 8 { forward 35 cm; turn right 45° }
    Which shape does it draw?     (a) square (b) hexagon (c) octagon (d) pentagon
  19. 19.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 50 cm; turn right ?° }
    What number goes in place of “?”
  20. 20.🔁 A drawing robot runs:
    repeat 2 { forward 60 cm; turn right 90°; forward 30 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  21. 21.🔁 A drawing robot runs:
    repeat 2 { forward 55 cm; turn right 90°; forward 25 cm; turn right 90° }
    How many cm does it drive in all?
  22. 22.🔁 A drawing robot runs:
    repeat 2 { forward 10 cm; turn right 90°; forward 35 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  23. 23.🔁 A drawing robot runs:
    repeat 5 { forward 10 cm; turn right 72° }
    How many cm does it drive in all?
  24. 24.🔁 A drawing robot runs:
    repeat 2 { forward 20 cm; turn right 90°; forward 30 cm; turn right 90° }
    How many cm does it drive in all?
  25. 25.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  26. 26.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  27. 27.🔁 A drawing robot runs:
    repeat 4 { forward 20 cm; turn right 90° }
    Which shape does it draw?     (a) octagon (b) hexagon (c) triangle (d) square
  28. 28.🔁 A drawing robot runs:
    repeat 2 { forward 55 cm; turn right 90°; forward 50 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  29. 29.🔁 A drawing robot runs:
    repeat 3 { forward 50 cm; turn right 120° }
    Which shape does it draw?     (a) square (b) pentagon (c) octagon (d) triangle
  30. 30.🔁 A drawing robot runs:
    repeat 5 { forward 35 cm; turn right 72° }
    How many cm does it drive in all?
  31. 31.🔁 A drawing robot runs:
    repeat 4 { forward 20 cm; turn right 90° }
    How many cm does it drive in all?
  32. 32.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 20 cm; turn right ?° }
    What number goes in place of “?”
  33. 33.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 10 cm; turn right ?° }
    What number goes in place of “?”
  34. 34.🔁 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)?
  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 6 { forward 95 cm; turn right 60° }
    How many cm does it drive in all?
  37. 37.🔁 A drawing robot runs:
    repeat 6 { forward 20 cm; turn right 60° }
    Which shape does it draw?     (a) pentagon (b) octagon (c) hexagon (d) triangle
  38. 38.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  39. 39.🔁 A drawing robot runs:
    repeat 4 { forward 75 cm; turn right 90° }
    Which shape does it draw?     (a) square (b) hexagon (c) octagon (d) triangle
  40. 40.🔁 A drawing robot runs:
    repeat 4 { forward 55 cm; turn right 90° }
    How many cm does it drive in all?

Answer key

  1. the same steps repeat
  2. hexagon
  3. octagon
  4. 80
  5. 130
  6. 72
  7. 120
  8. octagon
  9. 600
  10. 360°
  11. 70
  12. 360
  13. 45
  14. 360 ÷ n degrees
  15. 260
  16. 360
  17. hexagon
  18. octagon
  19. 90
  20. 1800
  21. 160
  22. 350
  23. 50
  24. 100
  25. 200
  26. 120
  27. square
  28. 2750
  29. triangle
  30. 175
  31. 80
  32. 72
  33. 90
  34. 1500
  35. 60
  36. 570
  37. hexagon
  38. 240
  39. square
  40. 220

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