SSC CHSL Model Paper 10

Question : 72 of 100

Marks: +1, -0

If the sum of the interior angles of a regular polygon be 1080°, the number of sides of the polygon is

Solution:

Sum of interior angle = (n − 2) × 180
Where ‘n’ is the number of sides.
(n − 2) × 180 = 1080
⇒ (n − 2) =

108 /18

⇒ n = 8
Hence, the number of sides = 8

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