Предмет: Геометрия, автор: helgi2111

помогите.пожалуйста. рисунок очень нужен! Через точки B1 и B2 стороны AB равностороннего треугольника ABC проведены плоскости альфа и бета, параллельные прямой BC. 1) На какие фигуры делится этот треугольник плоскостями? 2) Вычислите периметры этих фигур, если AC=8 см и AB1=B1B2=B2B

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Автор ответа: Margo17

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