The ratio of interior angle to exterior angle regular polygon is 49:1 then the number of side
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Given : The ratio of interior angle to exterior angle regular polygon is 49:1
To Find : Number of sides
Solution:
Sum of interior angle + exterior angle = 180° ( Linear Pair)
ratio of interior angle to exterior angle regular polygon is 49:1
Ley say exterior angle = x
Then Interior angle = 49x
=> 49x + x = 180
=> 50x = 180
=> x = 180/50
=> x = 18/5
Interior angle = 49x = 49(18/5)
Interior angle of regular polygon = (n-2)*180/n
(n-2)*180/n = 49(18/5)
=> (n-2)*50 = 49n
=> 50n - 100 = 49n
=> n = 100
Number of sides = 100
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