
Lingkaran dan Garis Singgung Lingkaran
Authored by samuel aprianus
Mathematics
8th Grade
Used 1+ times

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15 questions
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1.
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1 min • 3 pts
𝐴𝐶 merupakan diameter lingkaran yang berpusat di titik O. Jika besar ∠𝐵𝑂𝐴=100∘, maka ∠𝐶𝐷𝐵= ⋯ ∘
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2.
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1 min • 3 pts
Panjang tali yang dibutuhkan untuk mengikat 3 batang kayu bila diameter kayu 14 dm adalah ... cm.
Answer explanation
3.
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1 min • 3 pts
Keempat sisi persegi disinggung oleh sebuah lingkaran seperti gambar. Jika keliling lingkaran 44 cm, maka panjang sisi persegi adalah ... cm.
Answer explanation
4.
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1 min • 3 pts
Jika diketahui OA=4 cm, dan PB=2 cm dan OP=10 cm. Panjang garis singgung persekutuan dalam dua lingkaran tersebut adalah ... cm
Answer explanation
5.
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1 min • 3 pts
AOB adalah garis tengah. Jika besar ∠ABC = 63∘ dan besar ∠ABD = 49∘, maka besar ∠CAD = ⋯ ∘
Answer explanation
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
P adalah pusat lingkaran yang kelilingnya 4π cm dan ∠APB=50∘. Luas daerah di arsir adalah...
Answer explanation
7.
OPEN ENDED QUESTION
3 mins • 5 pts
Anton akan membuat 100 buah teralis berbentuk juring lingkaran terbuat dari besi. Panjang jari-jari lingkaran 18 cm dan besar sudut pusat 60∘. Panjang besi minimal yang digunakan untuk membuat teralis tersebut adalah ... (π=3,14)
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