If the sum of interior angles of a polygon is 1080°, then the polygon has ____ sides.

On the boundary

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Interior of the figure

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Exterior of the figure

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In the ground

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Solution

The correct option is B Interior of the figure
Sum of inteior angles of a polygon = 1080° ...... (given)

(2n - 4) x 90° = 1080°

(2n - 4) = 12

2n = 16

n = 8

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