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Find the sum of interior angles of a polygon with:(ii) 13 sides

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in Polygons by (40 points)
Find the sum of interior angles of a polygon with 13 sides.
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1 Answer

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by (63.2k points)

Given: 13 sides of polygon

No. of sides n = 13

∴ Sum of interior angles of polygon = (2n – 4) x 90°

= (2 x 13 – 4) x 90°

= 1980°

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