Question

find the number of side of a regular polygon if each interior angles of the polygon is 140
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Answer 1

Answer:

9 sides

Step-by-step explanation:

Exterior angle at a point on the polygon=180°- interior angle at a point=180°-140°=40°

Sum of all exterior angles of a polygon=360°

Number of sides= Sum of all exterior angles/measure of a exterior angle=360°/40°=9

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