
Quiz Matematika Lingkaran

Quiz
•
Mathematics
•
11th Grade
•
Hard
RATNA JUWITASARI
FREE Resource
39 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika lingkaran x2+y2+Ax+Ay+a=0 dengan A >0. Mempunyai jari jari 26, maka nilai A adalah...
4
5
6
7
8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui dua lingkaran dan x2+y2 = 2 dan x2+y2= 4. Garis 1 menyinggung lingkaran pertama di titik (1, -1). Garis 2 menyinggung lingkaran kedua dan tegak lurus dengan garis 1. Titik potong garis 1 dan 2 adalah .....
1+2,2-1
1-2,2-1
1+2,2+1
1-2,2-2
1+2,2+2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pusat dan jari-jari lingkaran dengan persamaan 𝑥 2 + 𝑦 2 + 4𝑥 − 6𝑦 − 12 = 0 berturut-turut adalah ….
(−2, 3) dan 4
(−2, 3) dan 5
(−2, 3) dan 6
(2, −3) dan 4
(2, −3) dan 5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lingkaran 𝑥 2 + 𝑦 2 + 4𝑥 + 𝑏𝑦 − 12 = 0 melalui titik (1, 7). Titik pusat lingkaran itu adalah ….
(−2, −3)
(−2, 3)
(2, 3)
(2, 4)
(2, 6)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Persamaan lingkaran dengan pusat (−1, 3) dan menyinggung sumbu Y adalah ….
𝑥 2 + 𝑦 2 + 2𝑥 − 6𝑦 + 1 = 0
𝑥 2 + 𝑦 2 − 2𝑥 + 6𝑦 + 1 = 0
𝑥 2 + 𝑦 2 − 𝑥 + 3𝑦 + 1 = 0
𝑥 2 + 𝑦 2 + 2𝑥 − 6𝑦 + 9 = 0
𝑥 2 + 𝑦 2 − 2𝑥 + 6𝑦 + 9 = 0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui lingkaran 2𝑥 2 + 2𝑦 2 − 4𝑥 + 3𝑝𝑦 − 30 = 0 melalui titik (−2, 1). Persamaan lingkaran yang sepusat tapi panjang jari-jarinya dua kali panjang jari-jari lingkaran tersebut adalah ….
2𝑥 2 + 2𝑦 2 − 4𝑥 + 12𝑦 − 90 = 0
2𝑥 2 + 2𝑦 2 − 4𝑥 + 12𝑦 + 90 = 0
𝑥 2 + 𝑦 2 − 2𝑥 + 6𝑦 − 90 = 0
𝑥 2 + 𝑦 2 − 𝑥 + 6𝑦 + 90 = 0
𝑥 2 + 𝑦 2 − 𝑥 − 6𝑦 − 90 = 0
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Persamaan lingkaran dengan pusat P(3, 1) dan menyinggung garis 3x + 4y + 7 = 0 adalah ….
𝑥 2 + 𝑦 2 − 6𝑥 − 2𝑦 + 6 = 0
𝑥 2 + 𝑦 2 − 6𝑥 − 2𝑦 + 9 = 0
𝑥 2 + 𝑦 2 − 6𝑥 − 2𝑦 − 6 = 0
𝑥 2 + 𝑦 2 + 6𝑥 − 2𝑦 − 9 = 0
𝑥 2 + 𝑦 2 + 6𝑥 + 2𝑦 + 6 = 0
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