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Geometry math question no Guessing and Please show work thank you

Geometry math question no Guessing and Please show work thank you-example-1
User Arveen
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1 Answer

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It is given that , each angle of a regular polygon measures 160 . And to check the polygon, we have to use the following formula


S= ((n-2)180)/(n)

n is the number of sides


160=((n-2)180)/(n)

Cross multiplication

160n = 180n -360

Subtracting 180n to both sides

-20n =-360

Dividing both sides by -20

n =18

So the polygon must have 18 sides