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OpenStudy (anonymous):
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OpenStudy (anonymous):
what is the sum of the measures of the interior angles of an 11-gon? A. 1800° B. 2340° C. 1980° D. 1620° <----- I think its D
OpenStudy (anonymous):
Use the formula: 180 * (n - 2) Where 'n' is the number of sides. So we plug in 11: 180 * (11 - 2) 180 * (9) 180 * 9 = ?
OpenStudy (anonymous):
Yes, it equals 1620..D is correct.
OpenStudy (anonymous):
1620.
OpenStudy (anonymous):
:P
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OpenStudy (anonymous):
Thanks! :)
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