Question

The sum of the angles of a polygon is 1980°. What is the sum of the angles of a polygon with one side less? What about a polygon with one side more?​

Answer 1

Answer:

The number of sides of polygon having sum of the angles of 1980° is 13 sides. When the number of sides of polygon one side less than 13-sided polygon. ∴ The sum of the angles of 12-sided polygon is 1800°.

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Answer 2

Step-by-step explanation:

∴ The number of sides of polygon having sum of the angles of 1980° is 13 sides. When the number of sides of polygon one side less than 13-sided polygon. ∴ The sum of the angles of 12-sided polygon is 1800°.

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