document.write( "Question 661890: What is the reason of angle 1 plus angle 3 plus angle 5 equal 180? \n" ); document.write( "
Algebra.Com's Answer #411824 by Alan3354(69443)\"\" \"About 
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What is the reason of angle 1 plus angle 3 plus angle 5 equal 180?
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\n" ); document.write( "Maybe they don't.
\n" ); document.write( "Where are they located?
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