Posted by dana on Monday, January 23, 2012 at 6:25am.
the sum of the interior angles of a heptagon is
180(7-2) = 900°
One angle is missing
x + 120+ 150+ 135 +170 +90 +125 = 900
x = 110
The smallest interior angle will cause the largest exterior angle
so largest exterior is 180 - 90 = 90°
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