UH 2 (panjang busur dan luas juring)

Quiz
•
Mathematics
•
8th Grade
•
Medium
Hidayatul Mufidah
Used 115+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
1. Panjang busur lingkaran yang sudut pusatnya 90⁰ dan berdiameter 20 cm adalah….. cm
A. 78,5
B. 62,8
C. 31,4
D. 15,7
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2. Sebuah lingkaran yang berpusat di O mempunyai diameter 21 cm. Jika besar <AOB=120°, maka panjang busur AB adalah.... cm
A. 11
B. 22
C. 33
D. 35,2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
3. Panjang busur AB adalah 12,56 cm. Jika besar <AOB adalah 160⁰ dan 𝜋=3,14, maka panjang OB adalah….
a. 3 cm
b. 4,5 cm
c. 9 cm
d. 18 cm
A. 18 cm
B. 9 cm
C. 4,5 cm
D. 3 cm
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
4. Panjang busur BC adalah 15,7 cm. Jika panjang jari-jari busur tersebut adalah 9 cm, maka besar sudut pusatnya adalah…
A. 60⁰
B. 80⁰
C. 100⁰
D. 120⁰
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
5. Panjang busur sebuah lingkaran yang besar sudut pusatnya 105⁰ adalah 42 cm. Keliling lingkaran adalah…. cm
A. 84
B. 120
C. 144
D. 150
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
6. Sebuah lingkaran berpusat di O dan berjari-jari 8 cm. Luas juring lingkaran tersebut yang besar sudutnya 135⁰ adalah….. cm2
A. 18,84
B. 25,52
C. 37,68
D. 75,36
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
7. Suatu juring mempunyai sudut pusat yang besarnya 72°. Jika diameter lingkarannya 21 cm, maka luas juring adalah.... cm²
A. 6,93
B. 19,25
C. 69,3
D. 192,5
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