Mathematics, 04.01.2021 14:00, Amyra2003

Could someone create Equations & Explanations based on this question, because I need to solve using substitution and later modify it to create a system of inequalities.

Could someone create Equations & Explanations based on this question, because I need to solve u

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Statements reasons 1. ab ≅ cd; ad ≅ bc 1. given 2. ac ≅ ac 2. reflexive property 3. △adc ≅ △cba 3. ? 4. ∠dac ≅ ∠bca; ∠acd ≅ ∠cab 4. cpctc 5. ∠dac and ∠bca are alt. int. ∠s; ∠acd and ∠cab are alt. int. ∠s 5. definition of alternate interior angles 6. ab ∥ cd; ad ∥ bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?

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Could someone create Equations & Explanations based on this question, because I need to solve us...