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Exterior angle of a regular polygon

Grade 8 math · Fieldbook Learning

Name ______________________ Date __________

The exterior angles of any polygon add to 360°. Divide by the number of sides.

  1. Find the measure of one exterior angle of a regular 18-sided polygon, in degrees.
  2. What is the measure of each exterior angle of a regular polygon with 5 sides, in degrees?
  3. A regular polygon has 60 sides. How many degrees is each exterior angle?
  4. Find the measure of one exterior angle of a regular 40-sided polygon, in degrees.
  5. A regular polygon has 4 sides. How many degrees is each exterior angle?
  6. A regular polygon has 20 sides. How many degrees is each exterior angle?
  7. A regular polygon has 12 sides. How many degrees is each exterior angle?
  8. A regular polygon has 8 sides. How many degrees is each exterior angle?
  9. What is the measure of each exterior angle of a regular polygon with 4 sides, in degrees?
  10. A regular polygon has 45 sides. How many degrees is each exterior angle?
  11. Find the measure of one exterior angle of a regular 10-sided polygon, in degrees.
  12. What is the measure of each exterior angle of a regular polygon with 40 sides, in degrees?
  13. Find the measure of one exterior angle of a regular 5-sided polygon, in degrees.
  14. Find the measure of one exterior angle of a regular 24-sided polygon, in degrees.
  15. A regular polygon has 72 sides. How many degrees is each exterior angle?
  16. What is the measure of each exterior angle of a regular polygon with 120 sides, in degrees?
  17. Find the measure of one exterior angle of a regular 6-sided polygon, in degrees.
  18. A regular polygon has 6 sides. How many degrees is each exterior angle?
  19. A regular polygon has 9 sides. How many degrees is each exterior angle?
  20. What is the measure of each exterior angle of a regular polygon with 360 sides, in degrees?
More free practice: fieldbooklearning.com/ca/practice/grade-8/exterior-angle-of-a-regular-polygon/

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Answer key: Exterior angle of a regular polygon

  1. 20
  2. 72
  3. 6
  4. 9
  5. 90
  6. 18
  7. 30
  8. 45
  9. 90
  10. 8
  11. 36
  12. 9
  13. 72
  14. 15
  15. 5
  16. 3
  17. 60
  18. 60
  19. 40
  20. 1