BRSL Nov
Quiz
•
Mathematics, Others
•
9th Grade
•
Practice Problem
•
Hard
Mintastuti Rahayu
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Seorang kontraktor sedang membangun pagar taman kota berbentuk setengah lingkaran dengan panjang jari-jari 42 meter. Berapa meter keliling pagar taman tersebut ? (phi = 22/7)
126 m
162 m
163 m
216 m
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebuah kubah menara berbentuk setengah bola dengan diameter 7 m. Bagian luar kubah tersebut akan dicat dan setiap 11 m2 memerlukan 1 kaleng cat. Banyak cat yang diperlukan untuk mengecat kubah tersebut adalah …. (UN 2010)
7 kaleng
14 kaleng
21 kaleng
28 kaleng
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Luas lingkaran tersebut adalah….(π= 22/7 )
154 cm2
308 cm2
616 cm2
1.386 cm2
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Luas permukaan kerucut dengan diameter 40 cm dan tinggi 15 cm adalah ….
750 π cm²
800 π cm²
850 π cm²
900 π cm²
5.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Berapa volume topi ultah tersebut jika diameter alas 28 cm dan tingginya 36 cm ?
5.392 cm3
6.392 cm3
7.392 cm3
8.392 cm3
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebuah tutup lampu berbentuk setengah bola akan digunakan untuk menutupi lampu jalan. Jika tutup lampu tersebut terbuat dari seng dan berdiameter 20 cm, maka banyaknya seng yang dibutuhkan untuk membuatnya adalah ... cm2 .
157
314
628
1.256
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebuah bola diameternya 21 cm. Tentukan luas permukaannya!
1200 cm2
1350 cm2
1386 cm2
1400 cm2
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