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OpenStudy (anonymous):

In what type of polygon is the sum of the measures of the interior angles equal to 1,260°?

OpenStudy (anonymous):

(n-2) pi =1260'

OpenStudy (anonymous):

where n = no of sides of polygon...find n

OpenStudy (anonymous):

it tells me to choose between:decagon, nonagon, octagon, heptagon

OpenStudy (anonymous):

1st calculate n...

OpenStudy (anonymous):

(n-2) pi =1260...where pi radian=180'

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