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The sum of the internal angles of a polygon is 2n - 4 right angles.
10440° = 10440/90 = 116 right angles.
If 2n - 4 = 116 then 2n = 116 + 4 = 120 : n = 60.
A 60 sided polygon has internal angles summing 10440°.
10440
Days of Our Lives - 1965 1-10440 was released on:
USA: 10 November 2006
Belgium: 19 April 2011
One Life to Live - 1968 The Rites and Wrongs of Spring 1-10440 was released on:
USA: 15 May 2009