SOLUTION: The sum of the measures of four angles of a pentagon is 405 degrees. Find the measure of the fifth angle.
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Question 589257: The sum of the measures of four angles of a pentagon is 405 degrees. Find the measure of the fifth angle.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The sum of the measures of the interior angles of an 
-gon is given by )
. Use 
to calculate the sum of the angles of a pentagon. Subtract the given sum of measures of the first four interior angles to find the measure of the fifth.
John
My calculator said it, I believe it, that settles it
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