Berapakah rumus luas lingkaran?

Matematika Lingkaran

Quiz
•
Others
•
9th Grade
•
Hard
ADJIE nug
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Luas lingkaran = 2r^2
Luas lingkaran = πr
Luas lingkaran = 2πr
Luas lingkaran = πr^2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika jari-jari lingkaran adalah 7 cm, berapakah keliling lingkaran tersebut?
Keliling = 2 x π x 14 = 28π cm
Keliling = π x 7 = 7π cm
Keliling = 2 x 7 = 14 cm
Keliling = 2 x π x 7 = 14π cm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah hubungan antara diameter dan jari-jari lingkaran?
Diameter lingkaran lebih kecil dari jari-jari lingkaran
Diameter dan jari-jari lingkaran memiliki hubungan yang sederhana, yaitu diameter adalah dua kali lipat dari jari-jari lingkaran.
Diameter adalah setengah dari jari-jari lingkaran
Diameter dan jari-jari lingkaran tidak memiliki hubungan matematis
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapakah nilai phi (π) dalam matematika lingkaran?
3.14 atau 22/7
2.718
4.669
3.00
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika luas lingkaran adalah 154 cm^2, berapakah jari-jari lingkaran tersebut?
12 cm
10 cm
7 cm
5 cm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika keliling lingkaran adalah 44 cm, berapakah diameter lingkaran tersebut?
Diameter = 44 cm - 3.14 ≈ 40.86 cm
Diameter = 44 cm / 3.14 ≈ 14 cm
Diameter = 44 cm * 3.14 ≈ 138 cm
Diameter = 44 cm / 2 ≈ 22 cm
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bagaimana cara menghitung luas lingkaran jika hanya diketahui panjang jari-jarinya?
Luas lingkaran = πr^2
Luas lingkaran = πr
Luas lingkaran = 2πr
Luas lingkaran = r^2
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