Площадь треугольника равна Semk = (1/2)*EK*KM*Sin(<EKM) (формула). =>
(1/2)8*15*Sin(<EKM) = 30 => Sin(<EKM) = 60/120 = 1/2. =>
<EKM = 30°
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Площадь треугольника равна Semk = (1/2)*EK*KM*Sin(<EKM) (формула). =>
(1/2)8*15*Sin(<EKM) = 30 => Sin(<EKM) = 60/120 = 1/2. =>
<EKM = 30°