Предмет: Геометрия, автор: iu878046

Решение полное с рисунком

Приложения:

Аноним: а можно все в решении объяснить
Аноним: рисунок же вы прикрепили

Ответы

Автор ответа: Аноним
0

Ответ:

1)Равные треугольники: ABD и CAD

Т.к. у них есть общая сторона АD,прямые углы C,B,одинаковый острый угол А.(Треугольники равны по гипотенузе и острому углу)

2)Равные треугольники: ADB и CBD

Т.к. у них есть общая сторона BD,равные острые углы А,С,и равный для двух треугольников угол D.(Треугольники равны по двум сторонам и углу между ними)

3)Равные треугольники: BEA и DEC

Т.к. у них одинаковые прямые углы В,С,равные гипотенузы DE,AE, следовательно образовавшиеся острые углы А,D равны.(Треугольники равны по гипотенузе и острому углу:)

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Even at school there had been an unhealthy competition between George and Richard. “I’ll be the first millionaire in Coleford!” Richard used to boast. “And you’ll be sorry you knew me,” George would reply “because I’ll be the best lawyer in town!”George never did become a lawyer and Richard never made any money. Instead both men opened bookshops on opposite sides of Coleford High Street. It was hard to make money from books, which made the competition between them worse.Then Richard married a mysterious girls. The couple spent their honeymoon on the coast-but Richard never came back. The police found his wallet on a deserted beach but the body was never found, he must have drowned.Now with only one bookshop in town, business was better for George. But sometimes he sat in his narrow , old kitchen and gazed out of the dirty window , thinking about his former rival 。Perhaps he missed him?George was very interested in old dictionaries, He’d recently found a collector in Australia who was selling a rare first edition. When the parcel arrived, the book was in perfect condition and George was delighted. But while he was having lunch, George glanced at the photo in the newspaper that the book had been wrapped in. He was astonished—the smiling face was older than he remembered but unmistakable! Trembling, George started reading. “Bookends have bought ten bookstores from their rivals Dylans. The company, owned by multi-millionaire Richard Pike, is now the largest bookseller in Australia.”
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