Polygon Internal Angles

14 Questions | Total Attempts: 169

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Polygon Internal Angles

Practice and use the sum rules for the internal angles of polygons. Calculate angle sums and individual angles.


Questions and Answers
  • 1. 
    How many sides does an octagon have?
  • 2. 
    A five-sided figure is called a
    • A. 

      Triangle

    • B. 

      Nonagon

    • C. 

      Pentagon

    • D. 

      Pentagram

    • E. 

      Fiveagon

  • 3. 
    What the name given to a four-sided figure of any side length?
  • 4. 
    How many sides does a dodecagon have?
    • A. 

      10

    • B. 

      12

    • C. 

      20

    • D. 

      21

    • E. 

      22

  • 5. 
    This shape is a:
    • A. 

      Hexagon

    • B. 

      Convex hexagon

    • C. 

      Mess

    • D. 

      Concave hexagon

    • E. 

      Hectare

  • 6. 
    This shape is a
    • A. 

      Nonagon

    • B. 

      Octagon

    • C. 

      Polyhedron

    • D. 

      Somethingagon

    • E. 

      Decagon

  • 7. 
    What is the name given to this shape - 
  • 8. 
    What is the sum of the internal angles of a triangle?
    • A. 

      200°

    • B. 

      90°

    • C. 

      180°

    • D. 

      100°

    • E. 

      360°

  • 9. 
    What is the sum of the internal angles of a pentagon?
    • A. 

      180°

    • B. 

      360°

    • C. 

      720°

    • D. 

      1080°

    • E. 

      540°

  • 10. 
    What is the sum of the external angles of any polygon?
  • 11. 
    How big is angle a?
  • 12. 
    How big is q
    • A. 

      393°

    • B. 

      100°

    • C. 

      120°

    • D. 

      131°

    • E. 

      720°

  • 13. 
    How many degrees is b?
    • A. 

      89.5°

    • B. 

      180°

    • C. 

      1800°

    • D. 

      90°

    • E. 

      11°

  • 14. 
    How big are the angles marked d?