Предмет: Математика, автор: marianna0715

Помогите пожалуйста, ОЧЕНЬ СРОЧНО НАДО!!!

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Автор ответа: 4GAGARINon
0
Если это ромб то угл DAB = 75 град.
То и у угла BCD тоже 75 град
Соответвенно в треугольнике BEC мы знаем 2 угла это 90 и 75 град
Сумма углов треугольника = 180 град
Угл CBE = 180 - BEC - BCE = 180 - 90 - 75 = 25 град

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