20=In ΔABC and Δ DEF, it is given that = A B D E = B C F D , then a. ∠ ∠ A= ∠ ∠ F b. ∠ ∠ B =∠ ∠ E c. ∠ ∠ A =∠ ∠ D d. ∠ ∠ B =∠ ∠ D About the author Alaia
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