SOLUTION: if the sum of the 4 interior angles of an octagon is 60 degrees.What is the sum of the remaining interior angles?

Question 831089: if the sum of the 4 interior angles of an octagon is 60 degrees.What is the sum of the remaining interior angles?
Answer by JulietG(1812) (Show Source): You can put this solution on YOUR website!
In a regular octagon, there are 8 angles at 135 degrees for a total of 1080 degrees.
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You have an odd shaped one, an irregular octagon! But the interior angles still need to equal 1080. So, the 4 remaining angles need to total 1080 - 60 or 1020.
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See http://www.mathcaptain.com/geometry/octagon.html#irregular-octagon for more information.
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