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The sum of the exterior angles of a polygon is 360o. Dividing 360o by the size of the exterior angle gives the number of sides.

If the interior angle is 144o, the exterior angle is 180o - 144o = 36o.

Number of sides = 360o / 36o = 10 (a decagon).

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Q: One angle of polynomial is 144 degree.find no of sides of polynomial?
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