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Nhgrif · Answer 1 · 2020-01-14T02:19:57+0000

Answer:

If the interior angle of a regular polygon is 160 degrees, then the exterior angle is 20 degrees. The sum of all exterior angles is 360 degrees so there must be 360/20 sides = 18 sides.

An 18 sided polygon is known as an octadecagon.

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