Предмет: Математика, автор: Аноним

периметр равнобедренного треугольника раве 18см.Боковая сторона равна 7см.Чему равно основание треугольника

Ответы

Автор ответа: DiRaNs

0

Ответ:

4 см

Пошаговое объяснение:

Боковые стороны у равнобедренного треугольника равны (по определению), они по 7 см.

Основание = PΔ - боковая сторона - боковая сторона

Основание = 18 см - 7 см - 7 см = 4 см

Автор ответа: horkovva

0

Ответ:

Пошаговое объяснение:

равнобедренный треугольник, у которого боковые стороны равны.

если 1 боковая сторона равна 7, то и вторая тоже 7.

отсюда 18-7-7=4 см равно основание.

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