document.write( "Question 219394: write a two-column proof
\n" ); document.write( "given <1 and <2 form a linear pair
\n" ); document.write( " <2 and <3 are supplementary
\n" ); document.write( "proven <1=<3
\n" ); document.write( "

Algebra.Com's Answer #164996 by susanaramya(12)\"\" \"About 
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<1+<2=180(linear pair)
\n" ); document.write( "<2=180-<1
\n" ); document.write( "<2+<3=180(supplementary)
\n" ); document.write( "180-<1+<3=180
\n" ); document.write( "<3=180-180+<1
\n" ); document.write( "<3=<1
\n" ); document.write( "
\n" );