Предмет: Геометрия, автор: amboss

ГЕОМЕТРИЯ! 8 КЛАСС!
ПОМОГИТЕ УМОЛЯЮ

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Ответы

Автор ответа: AsimptotaAlgebrovna

1

В прямоугольном треугольнике катет равен среднему пропорциональному между проекцией его на гипотенузу и самой гипотенузой.

Высота равна среднему пропорциональному между проекциями катетов на гипотенузу.

$AC=\sqrt{AH*AB}$

$BC=\sqrt{BH*AB}$

$CH=\sqrt{AH*BH}$

Теперь остаётся посчитать.

$AC=\sqrt{9*(9+7)}=\sqrt{144} =12$

$CH=\sqrt{9*7}=\sqrt{63}$

amboss: Спасибо огромное!

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