SSC MTS Model Paper 3

Question : 27 of 150

Marks: +1, -0

Each interior angle of a regular polygon is times of two right angles. How many sides are there in the regular polygon?

Solution:

Let the side of regular polygon = x
(2n − 4) × 90° ⇒ each interior angle =

{ ( 2 n - 4 ) × 90 ^ { ° } }/ { n }

ATQ,

{ ( 2 n - 4 ) × 90 ^ { °} } /{ n } = 2 × 90 × { 4 } /{ 5 } ⇒ n = 10

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