∠A≈78.7∘,∠B=70∘,∠C≈31.3∘.\(A B = 2.1 \textrm{ } \text{cm} , \textrm{ }\textrm{ } A C = 3.8 \textrm{ } \text{cm} , \textrm{ }\textrm{ } B C \approx 3.96 \textrm{ } \text{cm} .\)

∠A=75∘,∠B=65∘,∠C=40∘.\(B C = 4.2 \textrm{ } \text{cm} , \textrm{ } A C \approx 3.94 \textrm{ } \text{cm} , \textrm{ } A B \approx 2.79 \textrm{ } \text{cm} .\)

\(\angle A = 70^{\circ} , \textrm{ } \angle B = 65^{\circ} , \textrm{ } \angle C = 45^{\circ} .\)\(A B = 2.8 \textrm{ } \text{cm} , \textrm{ } B C \approx 3.72 \textrm{ } \text{cm} , \textrm{ } A C \approx 3.59 \textrm{ } \text{cm} .\)