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Andrea draws a polygon with x number of sides if the sum of the interior angle of her polygon is 60 times the number of side. how many sides does Andreas polygon have​

Respuesta :

MKhothokho

3 number of sides

Step-by-step explanation:

sum of interior angles= (n-2)180°

=> 60x=(x-2)180

60x=180x-360

=> 60x-180x=180x-180x-360

-120x=-360=> x=3

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