Предмет: Геометрия, автор: ssofiakonss

Срочно помогите решить!! Даю 30 баллов

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Ответы

Автор ответа: dnepr1

Проведём прямую параллельно короткой стороне.

Один отрезок длинной стороны равен х, второй 10 - х.

Подобие: х/4 = 4/(10 - х).

10х - х² = 16.

Получили квадратное уравнение х² - 10= + 16 = 0. Д = 100 - 64 = 36.

х1 = (10 - 6)/2 = 2, х2 = (10 + 6)/2 = 8.

Это практически один ответ, только прямая проводится с разных сторон параллелограмма.

Ответ: к = 2/4 = 1/2.

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(O’Henry)

The girl in grey came again to that quiet corner of the small park. She sat down upon the bench and began to read the book.
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