Предмет: Геометрия, автор: sofinovikova2008

СРОЧНО!!

AB=14; ВС=7.Знайти проекцію катета ВС на гіпотенузу АВ.

В поле для вводу відповіді ввести число (десятковим дробом через кому,
наприклад 1,2).

Приложения:

Ответы

Автор ответа: iva54
2

Відповідь:

3,5

Пояснення:

Квадрат катета дорівнює добутку гіпотенузи на проекцію цього катета на гіпотенузу. ВН - проекція катета ВС на гіпотенузу АВ.
ВС^2 = АВ•ВН, звідси

ВН = ВС^2 / АВ

ВН = 7^2 / 14

ВН = 49/14

ВН = 3,5

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