Найдите площадь треугольника АВС,если ВС=7см,АС=14см,угол С=30 градусов.
S = 1/2 a·b·sinγ=0.5*7*14*0.5=24.5
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S = 1/2 a·b·sinγ=0.5*7*14*0.5=24.5