document.write( "Question 992075: Angle 1 is congruent to angle 4. Prove angle 2 is supplementary to angle 3 \n" ); document.write( "
Algebra.Com's Answer #612019 by ikleyn(52810)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "We don't know what are these angles, what are relations and inter-relations between them.\r
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\n" ); document.write( "\n" ); document.write( "What is the sender thinking about when submitting such a request?\r
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