Polygon Internal Angles

14 Questions

Settings
Please wait...
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. 
    • 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?