Cho

Câu hỏi: Cho ΔABC=ΔDEF. Biết A^+B^=130o, E^=55o. Tính A^, C^, D^F^

AA^D^ = 65°F^C^50°

BA^ = D^ = 50°F^ = C^ = 65°

CA^ = D^ = 75°F^ = C^ = 50°

DA^ = D^ = 50°F^ = C^ = 75°