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OpenStudy (anonymous):
Determine the sum of the measures of the interior angles of the specified polygon. An octagon A. 720° B. 1080° C. 900° D. 1440°
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OpenStudy (campbell_st):
use the formula Angle Sum = (n -2) x 180 n = number of sides
OpenStudy (anonymous):
So when you plug it in it would = (8-2) x 180 = 1080
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