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Anni [7]
3 years ago
7

Can someone please help me with this question

Mathematics
1 answer:
Anton [14]3 years ago
5 0
It seems the first line has to be

1. AB=CD and AD=CB   1. given

2. AC=AC   2. Reflexivity (things are equal to themselves)

3  \triangle ACB \cong \triangle CAD      3. SSS

4.  \angle  1 =   \angle  4.  Corresponding parts of congruent triangles

5  DC || AB                 5.  Congruent alternate traversal angles imply parallel lines





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