C = 180-80-65=35°
a/sin A = b/sin B ; a/0.984 = 12/0.906
a = 0.984 × 12 / 0.906 ~ примерно равно 13
c/sin C = b/sin B ; c/0.573 = 12/0.906
c = 0.573 × 12 / 0.906 ~ примерно равно 7.6
C = 180-80-65=35°
a/sin A = b/sin B ; a/0.984 = 12/0.906
a = 0.984 × 12 / 0.906 ~ примерно равно 13
c/sin C = b/sin B ; c/0.573 = 12/0.906
c = 0.573 × 12 / 0.906 ~ примерно равно 7.6