АО Анна Орехова Ответ BC = CD = BC^2 + CD^2 = BD^2 2 * BC^2 = BD^2 2 * BC^2 = (6V2)^2 2 * BC^2 = 36*2 BC^2 = 36 BC = 6 S(сеч) = CD * BC = CD^2 = 6^2 = 36