Угол С = 180 - 30 - 45 = 105 градусов. По теореме синусов. 1. AB / sin (C) = AC / sin(B) AC = AB * sin (B) / sin (C) = 8 * (√2/2) / ((1 + √3) / 2√2) = 16 / (1 + √3) 2. AB / sin (C) = BC / sin (A) BC = AB * sin (A) / sin (C) = 8 * (1/2) / ((1 + √3) / 2√2) = 8 * √2 / (1 + √3)