document.write( "Question 934355: Please help me with this proof:\r
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Algebra.Com's Answer #567849 by AnlytcPhil(1806) $\"\"$ $\"About$

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document.write( "1.  ∠CDE ≅ ∠CED          Given.\r\n" );
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document.write( "2.  ΔCDE is isosceles     It has two congruent angles, from 1.\r\n" );
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document.write( "3.  CD ≅ CE              Congruent sides of isosceles triangle CDE, from 2.\r\n" );
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document.write( "4.  ∠ADC ≅ ∠BEC          Supplements of congruent angles are congruent, from 1.\r\n" );
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document.write( "5.  AD ≅ BE              Given.\r\n" );
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document.write( "6.  ΔADC ≅ ΔBEC          SAS, from 3,4, and 5 \r\n" );
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document.write( "7.  AC ≅ BC               Corresponding parts of congruent triangles, from 6.\r\n" );
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document.write( "8.  ΔACB is isosceles     ΔACB has two congruent sides, from 7.\r\n" );
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document.write( "Edwin

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