Trigonometri Dasar Presentasi

7 Slides • 6 Questions

1

Trigonometri Dasar

oleh : Muh. Harun

2

Open Ended

Tuliskan nama Anda

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3

Open Ended

Tuliskan Kelas Anda

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4

Tujuan Pembelajaran

Menghitung nilai perbandingan trigonometri pada sudut yang ditentukan pada sebuah segitiga siku-siku jika panjang sisi-sisinya diketahui
Menentukan panjang sisi sebuah segitiga siku-siku jika panjang satu sisi dan besar sebuah sudut yang bukan siku-siku diketahui

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Perbandingan Trigonometri

$\sin\ A=\frac{PQ}{AP}$
$\cos\ A=\frac{AQ}{AP}$
$\tan A=\frac{PQ}{AQ}$

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7

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Multiple Choice

Perhatikan gambar segitiga siku-siku ABC di samping.

Nilai $\sin B=...$

1

$\frac{7}{24}$

2

$\frac{7}{25}$

3

$\frac{24}{25}$

4

$\frac{24}{7}$

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Multiple Choice

Perhatikan gambar segitiga siku-siku ABC di samping.

Nilai $\cos B=...$

1

$\frac{7}{24}$

2

$\frac{7}{25}$

3

$\frac{24}{25}$

4

$\frac{24}{7}$

10

Multiple Choice

Perhatikan gambar segitiga siku-siku ABC di samping.

Nilai $\tan B=...$

1

$\frac{7}{24}$

2

$\frac{7}{25}$

3

$\frac{24}{25}$

4

$\frac{24}{7}$

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Menghitung panjang sisi dari perbandingan trigonometri

$\tan C=\frac{AB}{BC}=\frac{2}{3}$

$\tan C=\frac{FG}{GC}=\frac{FG}{2}$

$\Longrightarrow\ FG=2\times\tan C$

$\Longrightarrow\ FG=2\times\frac{2}{3}=\frac{4}{3}$

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Multiple Choice

Berdasarkan gambar di samping, panjang sisi DE adalah ...

1

$\frac{3}{4}$

2

$\frac{2}{3}$

3

$\frac{1}{2}$

4

$\frac{1}{3}$

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Trigonometri Dasar

oleh : Muh. Harun

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