The exterior angle of a regular polygon is one-third of it's interior angle. Find the number of sides of the polygon?
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Answer:
8,
Step-by-step explanation:
The sum of the interior and exterior angle of any polygon at any vertex is 360°.
Let the x= the exterior angle
3x+ x = 180°
4x = 180°
x = 180°/4
x = 45°
The sum of all exterior angles of any polygon is 360°.
360/ 45 = 8 .
The number of sides of polygon is 8.
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