document.write( "Question 884838: a pentagon of 5 sides has three angles which are each 140 degrees,the other two interior angles are equal.calculate the size of one of these angles \n" ); document.write( "
Algebra.Com's Answer #534801 by Alan3354(69443)\"\" \"About 
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a pentagon of 5 sides has three angles which are each 140 degrees,the other two interior angles are equal.calculate the size of one of these angles
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\n" ); document.write( "a pentagon of 5 sides - all pentagons have 5 sides
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\n" ); document.write( "The sum of the internal angles = (n-2)*180 degs
\n" ); document.write( "n = 5
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