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Aturan Sinus dan Cosinus

Authored by Mohammad Yusup

Mathematics

10th Grade

Used 73+ times

Aturan Sinus dan Cosinus
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui segitiga ABC dengan panjang AB = 18 cm, besar  ∠ACB=60o\angle ACB=60^o  dan besar  ∠CAB=45o\angle CAB=45^o  panjang BC adalah 

 62 cm6\sqrt{2}\ cm  

 63 cm6\sqrt{3}\ cm  

 66 cm6\sqrt{6}\ cm  

 83 cm8\sqrt{3}\ cm  

8 6 cm\sqrt{6}\ cm  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui segitiga KLM dengan panjang sisi LM=8 cm, KM 12 cm, dan besar sudut K= 30o30^o  . maka nilai dari Cos L adalah

 45\frac{4}{5}  

 35\frac{3}{5}  

 1413\frac{1}{4}\sqrt{13}  

 147\frac{1}{4}\sqrt{7}  

 145\frac{1}{4}\sqrt{5}  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

diketahui segitiga ABC dengan panjang sisi BC= 10 cm, besar  ∠A=30o\angle A=30^o  dan  ∠B=105o\angle B=105^o  panjang sisi AB adalah.....

10 cm

 102 cm10\sqrt{2}\ cm  

12 cm

 122 cm12\sqrt{2}\ cm  

 123 cm12\sqrt{3}\ cm  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Perhatikan segitiga ABC di samping, panjang sisi c adalah.......

22 cm2\sqrt{2}\ cm

433 cm\frac{4}{3}\sqrt{3}\ cm

343 cm\frac{3}{4}\sqrt{3}\ cm

342 cm\frac{3}{4}\sqrt{2}\ cm

3 cm\sqrt{3}\ cm

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Perhatikan gambar disamping, maka aturan sinus yang berlaku di bawah ini adalah......

a=Sin A Sin Bba=\frac{Sin\ A\ Sin\ B}{b}

a=c Sin BSin Ca=\frac{c\ Sin\ B}{Sin\ C}

b=a Sin Bb=a\ Sin\ B

c=b Sin CSin Bc=\frac{b\ Sin\ C}{Sin\ B}

c=b Sin Ac=b\ Sin\ A

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

perhatikan segitiga disamping, aturan cosinus yang berlaku untuk segitiga tersebut adalah.......

a2=b2+c2−2ac.Cos Aa^2=b^2+c^2-2ac.Cos\ A

b2=a2−c2+2ac.Cos Bb^2=a^2-c^2+2ac.Cos\ B

b2=a2+c2−2ab.Cos Bb^2=a^2+c^2-2ab.Cos\ B

c2=a2+b2−2ac.Cos Cc^2=a^2+b^2-2ac.Cos\ C

a2−b2=c2−2bc.Cos Aa^2-b^2=c^2-2bc.Cos\ A

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Dari segitiga PQR diketahui panjang PR =10 cm, PQ = 6cm dan besar  ∠P=60o\angle P=60^o   . Panjang QR adalah.....

 219 cm2\sqrt{19}\ cm  

 319 cm3\sqrt{19}\ cm  

 63 cm6\sqrt{3}\ cm  

 276 cm2\sqrt{76}\ cm  

 76 cm76\ cm  

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