Предмет: Математика, автор: Geshadurak

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С помощью теоремы синусов найдите отношения основания равнобедренного треугольник к боковым его сторонам.
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Автор ответа: ElizaTeplova
2

Ответ:

Пошаговое объяснение:

для решения в общем виде взял равные угла за альфа, а угол, противоположный основанию - бетта. взял это для удобства, поэтому последнее равно писать необязательно

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1. There are five ….. and fifteen …… in the basket.
A. appls, plumes
B. apples, plums
C. appls, plums
D. apples, plumes
2. Do ….. clean their ….. ?
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7. 2. I’m afraid … no water in the bottle.
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8. . … anything to eat at the party tomorrow?
A. There will be
B. Won’t there be
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C. the, the
D. a, ---- (nothing)
11. Will you pass me … salt, please?
A. the
B. a
C. an
D. ---- (nothing)
12. Those are … great jeans! How much were they?
A. a
B. the
C. an
D. ---- (nothing)
13. Why are … windows so dirty? When did you clean them last?
A. a
B. the
C. an
D. ---- (nothing)
14. We waited for … hour but nothing happened.
A. a
B. the
C. an
D. ---- (nothing)
15. Do you know what is … river in the world ?
A. the longest
B. longest
C. the most long
D. most long
16. The … the goods are, the … the price is.
A. worse, lowest
B. worst, lower
C. worst, lowest
D. worse, lower
17. People choose planes because they travel … than trains.
A. more fast
B. faster
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D. most fast
18. The … I forget, the … I know.
A. most, least
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C. was being
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