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Угол при вершине, противолежащей основанию равнобедренного треугольника, равен 90°. Найдите боковую сторону треугольника, если его площадь равна 450. Прошу помочь:)
Ответы 1
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площадь=1/2высоты*на основание Т.к это равнобедр.треуг.-к.то основание=высоте =x 450=1/2*xx 450=x^/2 900=x^ x=30 боковая сторона(она же высота и она же основание)=30
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Автор:
santiago - 5 лет назад
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