PERBANDINGAN TRIGONOMETRI PADA SEGITIGA SIKU-SIKU: Materi

5 Slides • 7 Questions

1

2

RUMUS FUNGSI TRIGONOMETRI

3

Contoh soal

4

Sebuah segitiga siku-siku diketahui memiliki sisi alas (a) 6 cm dan sisi miring (c) 10 cm. Hitung dengan rumus Pythagoras tinggi (b) dari segitiga siku-siku ini.

Jawab :

Diketahui : a = 6cm

c = 10cm

Ditanya : b....?

5

Multiple Choice

Perbandingan antara sisi samping dan sisi miring pada segitiga siku-siku dalam trigonometri disebut ....

1

cosecan

2

sinus

3

cosinus

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secan

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tangen

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Multiple Choice

Tentukan nilai cos $\alpha$ pada segitiga di samping adalah ...

1

$\frac{x}{r}$

2

$\frac{y}{r}$

3

$\frac{r}{x}$

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$\frac{x}{y}$

7

Multiple Choice

Kebalikan dari sinus adalah ....

1

cosinus

2

cosecan

3

cotangen

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secan

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tangen

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Multiple Choice

Sisi yang berada berhadapan dengan sudut siku-siku dinamakan sisi ....

1

miring

2

samping

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depan

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tegak

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datar

9

Multiple Choice

Nilai dari $\cos\alpha$ pada segitiga ABC adalah....

1

$\frac{5}{13}$

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$\frac{13}{15}$

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$\frac{12}{13}$

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$\frac{13}{5}$

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$\frac{12}{5}$

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Multiple Choice

Panjang AC pada segitiga ABC di atas adalah ....

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20

2

17

3

19

4

21

5

18

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Multiple Choice

Diketahui tan $\alpha\ =\frac{4}{3}$ , maka pernyataan yang tepat di bawah ini adalah ...

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$\sin\ \alpha=\frac{2}{3}$

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$\sin\ \alpha=\frac{3}{4}$

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cos $\alpha=\frac{3}{5}$

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tan 3 $\alpha=\frac{3}{5}$

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