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Shkiper50 [21]
2 years ago
7

If an regular interior angle of a regular polygon is 140 degrees, how many sides does the polygon have and I need the work

Mathematics
1 answer:
torisob [31]2 years ago
8 0

Answer:

9 sides

Step-by-step explanation:

exterior angle + interior angle = 180° , so

exterior angle + 140° = 180° ( subtract 140° from both sides )

exterior angle = 40°

The sum of the exterior angles of a polygon = 360°

Dividing sum by the measure of 1 exterior angles gives number of sides

number of sides = \frac{360}{40} = 9

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