Carol H. answered 06/01/18
Tutor
4.9
(285)
Masters' Degree in Mathematics with 35 years Teaching Experience.
Sum = 180(n-2)
S = 180(11 - 2)
S = 180(9)
S = 1620º
Taryn J.
asked 06/01/18
Carol H. answered 06/01/18
Masters' Degree in Mathematics with 35 years Teaching Experience.
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