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Penilaian 2 : ATURAN COSINUS

Authored by agus purwono

Mathematics

10th - 12th Grade

Used 6+ times

Penilaian 2 : ATURAN COSINUS
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5 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Diketahui segitiga ABC dengan AB = c , BC = a dan AC = b. Pernyataan berikut yang benar adalah ....

a2 = b2 +c2bc cos Aa^2\ =\ b^2\ +c^2-bc\ \cos\ A

a2=b2+c22bc cos Aa^2=b^2+c^2-2bc\ \cos\ A

a2=b2+b2abc cos Aa^2=b^2+b^2-abc\ \cos\ A

a2=b2+b2+bc cos Aa^2=b^2+b^2+bc\ \cos\ A

a2=b2+c2+2bc cos Aa^2=b^2+c^2+2bc\ \cos\ A

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Panjang sisi-sisi suatu segitiga beturut-turut adalah 4 cm, 4√3 cm dan 4 cm. Sudut terbesar pada segitiga tersebut adalah ....

150o

135o

120o

90o

60o

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Perhatikan gambar tersebut .          Nilai  sin A = ....

 232\sqrt{3}  

 3\sqrt{3}  

 123\frac{1}{2}\sqrt{3}  

 2\sqrt{2}  

 122\frac{1}{2}\sqrt{2}  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Diketahui segitiga ABC dengan AB = 6 cm, AC = 3 cm dan sudut A = 60o. Panjang BC = .... cm.

434\sqrt{3}

333\sqrt{3}

232\sqrt{3}

3\sqrt{3}

123\frac{1}{2}\sqrt{3}

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Diketahui ∆ PQR dengan PQ = 12 cm, PR = 4 cm, dan sudut P = 120o. Panjang QR = .... cm.

4134\sqrt{13}

3133\sqrt{13}

2132\sqrt{13}

13\sqrt{13}

1213\frac{1}{2}\sqrt{13}

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