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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°?
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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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