Предмет: Геометрия, автор: gigi53586

Паралелограм ABCD і трикутник AED не лежать в одній площині. Знайдіть кут між прямими BC і AE, якщо кутAED=70 градусів, кутADE=30 градусів

Ответы

Автор ответа: Аноним

Если параллелограмм и треугольник не лежат в одной плоскости то угол между прямыми DC s FT равен углу EAD

Сумма углов треугольника равна 180, поэтому угол AD=180-(70+30)=80°

Ответ:80°

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