document.write( "Question 175443: Given: AB is parallel to DE; AD is parallel to EB\r
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Algebra.Com's Answer #130518 by Mathtut(3670)\"\" \"About 
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document.write( "          statement                        reason\r\n" );
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document.write( "1.AB // DE, AD // EB                       1. given\r\n" );
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document.write( "2.quadrilateral ABED is a parallelogram    2. converse parallelogram th. if \r\n" );
document.write( "                                              opposite sides of a quadrilatral\r\n" );
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document.write( "                                              parallelogram\r\n" );
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document.write( "3.BD is a diagonal of ABED                 3. def. of a diagonal\r\n" );
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document.write( "4.tri BAD is congruent to tri DEB          4. diagonals of paralleogram form\r\n" );
document.write( "                                              two congruent triangles\r\n" );
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