Mathematics, 02.07.2021 22:10 mkuhauluasong2020
69 × 33 = (60 + 9) × ( 30 + 3) = (60 × 30) + ( × 3) + (9 × 30) + (9 × 3) = 1,800 + + 270 + 27 =
Answers: 2
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Given: ab ≅ cd and ad ≅ bc prove: abcd is a parallelogram. 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? triangle angle sum theorem sas congruency theorem sss congruency theorem cpctc
Answers: 1
69 × 33 = (60 + 9) × ( 30 + 3) = (60 × 30) + ( × 3) + (9 × 30) + (9 × 3) = 1,800 + + 270 + 27 =...
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