
Understanding Circles in Mathematics
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
NOOR Moe
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah formula untuk mengira luas bulatan?
A = j²/2
A = πj²
A = πd
A = 2πj
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika jejari bulatan adalah 7 cm, apakah luasnya?
154 cm²
150 cm²
153.94 cm²
160 cm²
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah lilitan bulatan dengan diameter 10 cm?
31.42 cm
15.70 cm
40.84 cm
25.12 cm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Definisikan istilah jejari dan diameter berkaitan dengan bulatan.
Jejari adalah jarak dari pusat ke tepi; diameter adalah dua kali ganda jejari.
Jejari adalah panjang keseluruhan bulatan; diameter adalah luas bulatan.
Jejari adalah jarak dari satu titik pada tepi ke titik lain; diameter adalah jarak dari pusat ke tepi.
Jejari adalah jarak melintasi bulatan; diameter adalah separuh daripada jejari.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika diameter sebuah bulatan adalah 14 cm, apakah jejari bulatan tersebut?
7 cm
5 cm
10 cm
12 cm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah taman bulat mempunyai jejari 5 m. Apakah luasnya?
78.54 meter persegi
31.42 meter persegi
100 meter persegi
50.27 meter persegi
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika sebuah bulatan mempunyai lilitan 31.4 cm, apakah jejari bulatan tersebut?
10 cm
7 cm
3 cm
5 cm
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