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21 October, 23:03

What is the exterior and interior angle of a 18 sided polygon

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  1. 21 October, 23:18
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    Would assume the Polygon is an 18 sided regular polygon.

    Exterior angle for regular polygon = 360/n (Sum of angles of exterior angles = 360°)

    where n = number of sides.

    Exterior angle = 360 / 18 = 20

    Exterior angle = 20°

    Sum of exterior angle + Interior angle = 180° (Both angles are on a straight line, so the sum is 180°)

    Interior angle = 180° - 20°

    Interior angle = 160°

    Hope this explains it.
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