Предмет: Алгебра, автор: pppppop

Диагональ AC прямоугольника ABCD равна 8 см и состовляет со стороной AD угол в 45 градусов.Найдите площадь прямоугольгикаа)

Ответы

Автор ответа: Аноним

0

Такая ситуация возможна только в квадрате.
Пусть сторона квадрата = х. Вторая сторона = х. По т. Пифагора х²+х² = 64, 2х² = 64,х²= 32, S = x² = 32

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