The sum of the measures of the angles of regular polygon is 2160 deg How many sides does it have ........

Quantitative Aptitude ( CCS) Mensuration 2D

The sum of the measures of the angles of regular polygon is 2160°. How many sides does it have?

Sum of all angles = 90° (2n - 4)
⇒ 2160 = 90 (2n – 4)
2n = 24 + 4
∴ n = 14
Hence the polygon has 14 sides.

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