Сақинаның ауданы

$$S_{сақина}=\pi\left(R^2-r^2\right)$$

Диагоналдарының қосындысы

$$\frac{\left(n-3\right)n}{2}$$

Дұрыс көпбұрыш ауданы

$$S=\frac{nar}{2}=\frac{1}{4}na^2\operatorname{ctg}\left(\frac{\pi}{n}\right)=\frac{n}{2}R^2\sin\left(\frac{2\pi}{n}\right)$$ a дұрыс көпбұрыштың қабырғалары

Дөңгелек;шеңбер; ккөпбұрыштар Flashcards

Student preview

14 questions

Show all answers

1.

FLASHCARD QUESTION

Front

$\beta\ мәні$

Back

$\beta=\frac{\alpha}{2}$

2.

FLASHCARD QUESTION

Front

$\gamma\ мәні$

Back

$\gamma=\frac{\alpha+\beta}{2}$

3.

FLASHCARD QUESTION

Front

$Хорданың\ мәні\ \left(l\right)$

Back

$l=2r\sin\left(\frac{\alpha}{2}\right)=2r\sin\beta$

4.

FLASHCARD QUESTION

Front

Back

$AB^2=AC\times AD$

5.

FLASHCARD QUESTION

Front

Back

$AB\times AC=AD\times AE$

6.

FLASHCARD QUESTION

Front

дөңгелектің ауданы

Back

$S=\pi r^2$

7.

FLASHCARD QUESTION

Front

шеңбердің ұзындығы

Back

$C=2\pi r$

8.

FLASHCARD QUESTION

Front

Доғаның ұзындығы

Back

$l=\frac{\pi r\alpha}{180\degree}$ $\alpha-центрлік\ бұрыш$

9.

FLASHCARD QUESTION

Front

Сектордың ауданы

Back

$S_{сектор}=\frac{\pi r^2\alpha}{360\degree}$

10.

FLASHCARD QUESTION

Front

сегменттің ауданы

Back

$S_{сегмент}=r^2\left(\frac{\pi\alpha}{360\degree}-\frac{\sin\alpha}{2}\right)$

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