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Соотношения в прямоугольном треугольнике (4)

Authored by Алена Нестерук

Mathematics

9th Grade

Used 2+ times

Соотношения в прямоугольном треугольнике (4)
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5 questions

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1.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

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Найдите S (площадь треугольника АВС). В ответ запишите

 S3S\sqrt{3}  



(a)  

2.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

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Найдите tgACB. В ответ запишите 6tgACB. 



(a)  

3.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

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 ctgα=125\operatorname{ctg}\alpha=\frac{12}{5}  . Найдите  sinα\sin\alpha  .  В ответ запишите  13sinα13\sin\alpha  . 



(a)  

4.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

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 cosϕ=45\cos\phi=\frac{4}{5}  , АВ=100.  Найдите h. 



(a)  

5.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

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Найдите HC. 



(a)  

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