Предмет: Алгебра, автор: Андрюшенька

углы ABM и CBM смежные BS- биссектриса угла ABM.НАЙДИТЕ УГОЛ CBS если угол MBS равен 30 градусам

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Автор ответа: dasdasfa

0

∠MBS=30; BS-биссектриса, ∠ABS=∠MBS=30
∠ABS i ∠CBS-смежные
∠CBS=180-30=150
ОТВЕТ. 150 град

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