
Uji Pemahaman Trigonometri
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Fitri Ramadhani
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hitung sudut segitiga jika dua sudutnya adalah 45° dan 55°.
80°
70°
75°
90°
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gunakan identitas trigonometri untuk menyederhanakan sin²(x) + cos²(x).
sin²(x) - cos²(x)
1
sin²(x) + 2cos²(x)
sin²(x) * cos²(x)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Selesaikan persamaan trigonometri: 2sin(x) - 1 = 0.
x = 3π/4 + 2kπ
x = 0 + 2kπ
x = π/4 + 2kπ
x = π/6 + 2kπ, x = 5π/6 + 2kπ, k ∈ Z
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hitung panjang sisi segitiga jika sisi a = 5 cm, b = 7 cm, dan sudut C = 60°.
5.00 cm
7.50 cm
6.24 cm
8.00 cm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Terapkan hukum sinus untuk mencari sisi c pada segitiga dengan a = 10 cm, b = 15 cm, dan sudut A = 30°.
c = 12.5 cm
c = 17.32 cm
c = 20 cm
c = 15.5 cm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gambarlah grafik fungsi y = sin(x) dalam rentang 0 hingga 360 derajat.
Grafik fungsi y = sin(x) dalam rentang 0 hingga 360 derajat adalah gelombang sinus yang dimulai dari (0,0), mencapai puncak di (90,1), kembali ke (180,0), mencapai titik terendah di (270,-1), dan kembali ke (360,0).
Grafik fungsi y = sin(x) dalam rentang 0 hingga 360 derajat adalah garis lurus dari (0,0) ke (360,0).
Grafik fungsi y = sin(x) dalam rentang 0 hingga 360 derajat adalah gelombang sinus yang hanya mencapai puncak di (180,0).
Grafik fungsi y = sin(x) dalam rentang 0 hingga 360 derajat adalah gelombang persegi yang berulang setiap 90 derajat.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hitung sudut A pada segitiga jika sisi a = 8 cm, b = 6 cm, dan c = 10 cm menggunakan hukum cosinus.
60 derajat
30 derajat
53.13 derajat
45 derajat
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Selesaikan persamaan trigonometri: cos(2x) = 0.5.
x = 30° + 180°k, x = 150° + 180°k, k ∈ Z
x = 0° + 180°k
x = 90° + 180°k
x = 120° + 180°k
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