SSC CPO SI and ASI Model Paper 6

Question : 128 of 200

Marks: +1, -0

If the sum of all the interior angles of a polygon is 900°, then the polygon is a

Solution:

(3) Sum of all the interior angles ofa polygon of n sides is 180° (n – 2).
So

,( n -2 )=900°/180°= 5 ⇒n =7

∴ The polygon is heptagon.

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