RRB Group D 3-Oct-2018 Shift 3 Solved Paper

Question : 30 of 100

Marks: +1, -0

The sum of the interior angles of a regular octagon is:

Solution:

Sum of interior angle of a regular polygon of

n

sides

=2(n-2)× 90

Here

{n}=8

So, sum of interior angle of a octagon

=2(8 -2)× 90°=1080

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