Question

1. Daca ABC~ DEF, m(B)= 60 GRADE, m(F) =20 GRADE. Sa se afle m(C) si m(D)

Answer 1

m(F) ≡ m(C)=20 grade

in ΔABC: C=20 grade;B=60 grade⇒ A= 180 grade - (B+C) = 180 grade - 80=100 grade⇒ m(A)≡m(D)=100 grade