document.write( "Question 257490: Given: AB and CD bisects each other at M
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Algebra.Com's Answer #189415 by drk(1908)\"\" \"About 
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STATEMENT 1: AB bisects CD at M
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\n" ); document.write( "STATEMENT 2: AM congruent BM
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\n" ); document.write( "STATEMENT 3: CM congruent DM
\n" ); document.write( "REASON 3: definition of bisector
\n" ); document.write( "STATEMENT 4: angle CMB congruent angle AMD
\n" ); document.write( "REASON 4: definition of vertical angles
\n" ); document.write( "STATEMENT 5:triangle CMB congruent triangle AMD
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\n" ); document.write( "STATEMENT 6: CB congruent AD
\n" ); document.write( "REASON 6: CPCTC
\n" ); document.write( "STATEMENT 7: angle CBM congruent angle DAM
\n" ); document.write( "REASON 7: CPCTC
\n" ); document.write( "STATEMENT 8: CB is parallel to AD
\n" ); document.write( "REASON 8: definition of parallel lines.
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