
ATURAN SINUS DAN COSINUS
Authored by Teti Nurlisah
Mathematics
12th Grade
Used 157+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Sebuah segitiga ABC dengan panjang sisi AB = 10cm dan sisi BC = 20 cm. Berapa besar sudut A jika besar sudut C = 30° ?
90°
60°
45°
30°
2.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Diketahui sebuah segitiga ABC dengan besar sudut A = 120° , sudut B = 30° , dan panjang sisi BC = 4 cm. Berapa panjang sisi AC ?
4√3
4/3 √3
3/4 √3
3/4 √2
3.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Sebuah segitiga PQR dengan panjang sisi PQ = 8 cm, sudut R = 30° dan sudur Q = 45°. Panjang sisi PR adalah ....
4√2
4
8√2
8
4.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Diketahui segitiga ABC dengan besar sudut A adalah 60° , sudut B adalah 45° , dan panjang sisi AC sama dengan 10 cm. Panjang BC pada segitiga tersebut adalah ...
8√3
5√5
5√6
6√5
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Diketahui segitiga RST dengan besar sudut R adalah 45° , panjang sisi ST = 20√2 cm dan sisi RS = 20 cm. Besar sudut T adalah ...°
30
45
60
90
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Diketahui sebuah segitiga ABC dg panjang sisi AB = 5√2 , sisi AC = 10√2 , dan besar sudut A = 60°. Panjang BC adalah ....
4√2
6√2
7√3
5√6
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Dibawah ini manakah yang merupakan rumus segitiga berdasarkan aturan cosinus, kecuali....
a² = b² + c² -2bc cos a
b² = a² + c² -2ac cos b
c² = a² + b² -2ab cos c
a² = b² + c² -2ab cos c
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