Предмет: Геометрия, автор: raduyk140

Вопрос на 30 б. Докажите, что параллелограмм ABCD является прямоугольником, если А (4; 2; 3) ,В (2 ;3 ;0),С(-1;3;2).Вычислите его площадь.

Ответы

Автор ответа: Medved23

Ответ:

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Объяснение:

Приложения:

raduyk140: Здравствуйте, спасибо за ответ.. Но больше интересовала часть с площадью, т.к. у меня получается не целое число, получилось округлённо 13.5

Medved23: Забыл про площадь. Сейчас дополню

raduyk140: Спасибо

Medved23: У меня площадь совпала с Вашей, так что, думаю, так и должно быть

jaksksna: можно часть решения с площадью?

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