Reasons
1. given
2. unique line postulate
3. def. of alt. interior angles
St...
Mathematics, 04.05.2020 23:52 chessacs6540
Reasons
1. given
2. unique line postulate
3. def. of alt. interior angles
Statements
1. ABCD is a parallelogram
2. draw AC
3. ZDCA and BAC
are alt. interior angles
4. BCA and DAC
are alt. interior angles
5. AC AC
6. AB || CD
4. def. of alt, interior angles
5. reflexive property
6. def. of parallelogram
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