Предмет: Геометрия, автор: plfyyb

В ΔABC ∠B = 90°. Через вершину B проведена прямая, которая параллельна стороне АC и образует с АB угол 48°. Найдите ∠А и ∠С.
Можно без чертежа и дано.

Ответы

Автор ответа: 12345667777
0

Ответ:

<А=30° <С=30°; 90°÷3=30°

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Математика, автор: dan261336
Найти площадь полной поверхности
SA-высота
Срочно!!!
6 лет назад
Предмет: Английский язык, автор: bypbon
Переведите :




Tablets of wood -

Pieces of bark -

Wax -

Strips of leather -

Clay tablets -

Baking -

They were long lasting -

Survived until the present day -

Papyrus -

A strip rolled from one cylinder to another -

Volume -

Middle Ages -

Books were quite common -

To chain -

The invention of printing -

Went over Europe -

Craftsmen -

Editors, publishers and booksellers -

The appearance of a proper system of public libraries -

90 million items -

Books and manuscripts -
Unique collections -

To keep -
6 лет назад
Предмет: Английский язык, автор: andersonsmith
Лёгкое задание! Дам 40 баллов!
Выписать из теста 10 имя прилагательных и создать 10 предложений.
1 прилагательное - 1 предложение.
I'm Never Going to be Hungry Again For a timeless time, she lay still, her face in the dirt, the sun beating hotly upon her, remembering things and people who were dead, remembering the way of living that was gone forever and looking upon the dark future. When she arose at last and saw again the black ruins of Twelve Oaks, her head was raised high and something that was youth and beauty had gone out of her face forever. What was past, was past. Those who were dead were dead. The lazy luxury of the old days was gone never to return. And as Scarlett settled the heavy basket across her arm, she had settled her own mind and her own life. There was no going back, she was going forward. Throughout the South for fifty years there would be bitter-eyed women who looked backward to dead times, to dead men, bearing poverty with pride because they had these memories. But Scarlett was never to look back. She looked at the backened stones and, for the last time, she saw Twelve Ok before her eyes as it had once stood, rich and proud. Then the started down the ma toward Tara, the heavy basket cutting her hand She felt hunger in her empty stomach again and the said aloud "As God is my witness God is my witness, the Yankees aren't going to beat me. I'm going to live through this and when it's over I'm never going to be hungry again. No, nor any of my folkes​
6 лет назад
Предмет: Химия, автор: superzaikova
Чистое вещество
1) дождевая вода
2) родниковая вода
3) дистиллированная вода
4) морская вода
5) газированная вода
9 лет назад
Предмет: Биология, автор: Ilyacool228
пшеница и кукуруза относятся к классу однодольные , число чашелистиков и лепестков у них кратно 1)трём 2) четырем 3) пяти 4) шести
9 лет назад