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Angles on a straight line

Year 8 maths · Fieldbook Learning

Name ______________________ Date __________

Angles next to each other on a straight line add up to 180 degrees.

  1. Two straight lines cross. One of the angles measures 61°. How many degrees is an angle next to it on a straight line?
  2. Two straight lines cross. One of the angles measures 160°. How many degrees is an angle next to it on a straight line?
  3. Two straight lines cross. One of the angles measures 43°. How many degrees is an angle next to it on a straight line?
  4. Two straight lines cross. One of the angles measures 124°. How many degrees is an angle next to it on a straight line?
  5. Two straight lines cross. One of the angles measures 139°. How many degrees is an angle next to it on a straight line?
  6. Two straight lines cross. One of the angles measures 69°. How many degrees is an angle next to it on a straight line?
  7. Two straight lines cross. One of the angles measures 38°. How many degrees is an angle next to it on a straight line?
  8. Two straight lines cross. One of the angles measures 116°. How many degrees is an angle next to it on a straight line?
  9. Two straight lines cross. One of the angles measures 14°. How many degrees is an angle next to it on a straight line?
  10. Two straight lines cross. One of the angles measures 71°. How many degrees is an angle next to it on a straight line?
  11. Two straight lines cross. One of the angles measures 111°. How many degrees is an angle next to it on a straight line?
  12. Two straight lines cross. One of the angles measures 67.5°. How many degrees is an angle next to it on a straight line?
  13. Two straight lines cross. One of the angles measures 150.5°. How many degrees is an angle next to it on a straight line?
  14. Two straight lines cross. One of the angles measures 27.5°. How many degrees is an angle next to it on a straight line?
  15. Two straight lines cross. One of the angles measures 19°. How many degrees is an angle next to it on a straight line?
  16. Two straight lines cross. One of the angles measures 168.5°. How many degrees is an angle next to it on a straight line?
  17. Two straight lines cross. One of the angles measures 11.5°. How many degrees is an angle next to it on a straight line?
  18. Two straight lines cross. One of the angles measures 143.5°. How many degrees is an angle next to it on a straight line?
  19. Two straight lines cross. One of the angles measures 13.5°. How many degrees is an angle next to it on a straight line?
  20. Two straight lines cross. One of the angles measures 171.5°. How many degrees is an angle next to it on a straight line?
More free practice: fieldbooklearning.com/uk/practice/year-8/angles-on-a-straight-line/

Play it as a quiz game

20 of these questions as multiple choice, with near-miss wrong answers, ready for Kahoot or Blooket.

  1. Download the game's own question template: in Kahoot, Add question → Import spreadsheet; in Blooket, Create a set → Spreadsheet import.
  2. Click the matching button below, then click the first empty question row of the template and paste.
  3. Save the template (Kahoot needs .xlsx, Blooket .csv) and upload it.
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Answer key: Angles on a straight line

  1. 119
  2. 20
  3. 137
  4. 56
  5. 41
  6. 111
  7. 142
  8. 64
  9. 166
  10. 109
  11. 69
  12. 112.5
  13. 29.5
  14. 152.5
  15. 161
  16. 11.5
  17. 168.5
  18. 36.5
  19. 166.5
  20. 8.5