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  • Geometry
  • Polygons
  • Angles of regular polygons

Angles of regular polygons

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  • Question 1:
    1 pts
    		The size of the exterior angles of the regular polygon shown on the picture is 220∘.220^{\circ}.
  • Question 2:
    1 pts
    		The size of the interior angles of the regular polygon shown on the picture is 160∘.160^{\circ}.
  • Question 3:
    1 pts
    		Find the size of an interior angle of a regular polygon with 2020 sides.
  • Question 4:
    1 pts
    		Which regular polygons have the exterior angles of 99 degrees?

    36−36- sided polygon

    38−38- sided polygon

    40−40- sided polygon

    42−42- sided polygon

  • Question 5:
    2 pts
    		Here is the vertex of a regular polygon. How many sides does it have?
    99
    1111
    1313
    1515
  • Question 6:
    2 pts
    		The diagrams shows a regular decagon. Find the measure of angle marked x.x.
    x=18∘x=18^{\circ}
    x=20∘x=20^{\circ}
    x=26∘x=26^{\circ}
    x=56∘x=56^{\circ}
  • Question 7:
    2 pts
    		The diagram shows a regular hexagon joined to a regular pentagon. The angles labelled a,ba, b and cc are equal a=108∘,b=120∘\mboxandc=132∘.a=108^{\circ}, b=120^{\circ} \mbox{ and } c=132^{\circ}.
  • Question 8:
    2 pts
    		One exterior angle of the regular polygon is 2020 degrees. Find the sum of its interior angles.

    1620∘1620^{\circ}

    2160∘2160^{\circ}

    2700∘2700^{\circ}

    2880∘2880^{\circ}

  • Question 9:
    3 pts
    		Rectangular flowerbeds are built on each side of a fishpond in the shape of a regular octagon. What is the measure of the angle xx, between two consecutive flowerbeds?
    20∘20^{\circ}
    30∘30^{\circ}
    40∘40^{\circ}
    45∘45^{\circ}
  • Question 10:
    3 pts
    		The regular polygon shown on the picture have 1818 sides.

Triangle

Quadrilateral

Circle

Polygons