Soal latihan kelompok 2

Quiz
•
Mathematics
•
9th Grade
•
Medium

elia a
Used 1+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
Luas permukaan bola yang berdiameter 21 cm dengan π = 22/7 adalah. . . .
462 cm²
1.386 cm²
66 cm²
2.244 cm²
2.
MULTIPLE CHOICE QUESTION
15 mins • 15 pts
Perhatikan gambar diatas !
Sebuah kerucut memiliki jari-jari sebesar r = 30 cm dan garis pelukis s = 50 cm. Tentukan luas selimut kerucut tersebut!
4.710 cm²
1.500 cm²
2.512 cm²
1.063 cm²
3.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
Rumus luas permukaan tabung (tertutup) adalah. . . .
L = πr²
L = πr (r + 2t )
L = 2πrt
L = 2πr (r + t)
4.
MULTIPLE CHOICE QUESTION
15 mins • 15 pts
Perhatikan gambar di atas!
Sebuah tabung tertutup memiliki jari-jari sebesar 20 cm dan tinggi 40 cm. Tentukan volume tabung tersebut!
2.512 cm²
2.547 cm²
50.240 cm²
5.095 cm²
5.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
Terdapat dua buah bola dengan jari-jari masing-masing 10 cm dan 20 cm. Tentukan perbandingan volume kedua bola tersebut!
1:8
1:4
2:4
2:8
6.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
6. Perhatikan gambar di bawah ini !
Hubungan r, s, dan t pada kerucut adalah. . . .
r² = s² : t²
t² = r² x s²
s² = r² + t²
s² = t² - r²
7.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
Sebuah tabung memiliki luas permukaan 880 cm². Jika diameter tabung 14 cm, maka tinggi tabung tersebut adalah. . . .
18 cm
13 cm
20 cm
15 cm
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