Question

8. The sum of the interior angles of a polygon is 2160°. How many sides does this polygon
have?

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give the answer in berife​

Answer 1

Answer:

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Step-by-step explanation:

The sum of the angles around the interior point is clearly 360 degrees, so the sum of the polygon's angles will be (180n)-360 = (n-2) x 180 degrees. Here we have (n-2) x 180 = 2160, so n-2 = 12. So the polygon has 14 sides.

Answer 2

Answer:

The sum of the angles around the interior point is clearly 360 degrees, so the sum of the polygon's angles will be (180n)-360 = (n-2) x 180 degrees. Here we have (n-2) x 180 = 2160, so n-2 = 12. So the polygon has 14 sides.