SOLUTION: four interior angles of a pentagon each measure 110. what is the measure of the fifth interior angle?

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Question 360529: four interior angles of a pentagon each measure 110. what is the measure of the fifth interior angle?
Answer by checkley77(12844) About Me  (Show Source):
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180(n-1)=180(5-1)=180*4=720 total degrees for the interior angles of the pentagon.
4*110=440 degrees for the 4 angles.
720-440=280 degrees for the fifth angle.