document.write( "Question 516939: How do i solve this proof?
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Algebra.Com's Answer #344552 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Given: m∠1 = m∠2\r\n" );
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document.write( "And points D,F, and E are colinear\r\n" );
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document.write( "Prove: AB ⊥ ED \r\n" );
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document.write( "m∠1 = m∠2                                    Given\r\n" );
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document.write( "∠1 and ∠2 form a linear pair              D,F, and E are colinear\r\n" );
document.write( "                                           and adjacent angles\r\n" );
document.write( "                                           which form a straight\r\n" );
document.write( "                                           line form a linear pair \r\n" );
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document.write( "∠1 is supplementary to ∠2                 If two angles form a linear pair,\r\n" );
document.write( "                                           they are supplementary\r\n" );
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document.write( "m∠1 + m∠2 = 180°                          Supplementary angles have sum 180°\r\n" );
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document.write( "m∠1 + m∠1 = 180°                          A quantity may be substituted\r\n" );
document.write( "                                           for its equal\r\n" );
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document.write( "   2(m∠1) = 180°                          Definition of like terms \r\n" );
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document.write( "      m∠1 = 90°                           Halves of equal quantities are\r\n" );
document.write( "                                           equal\r\n" );
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document.write( "  ∠1 is a right angle                      Definition of a right angle is one\r\n" );
document.write( "                                           whose measure is 90°\r\n" );
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document.write( "    AB ⊥ ED                               Definition of perpendicular\r\n" );
document.write( "                                           lines. \r\n" );
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document.write( "Edwin
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