
Circle Geometry
Authored by Terri Ciocca
Mathematics
7th Grade
Used 8+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula to calculate the area of a circle?
A = 2πr
A = πd
A = r^2
A = πr^2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the radius of a circle is 5 cm, what is its circumference?
15π cm
25π cm
20π cm
10π cm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula to calculate the circumference of a circle?
pi * radius
pi * diameter
2 * pi * radius
2 * radius
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the diameter of a circle is 12 cm, what is its area?
144π cm^2
24π cm^2
36π cm^2
72π cm^2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ratio of the circumference of a circle to its diameter?
2
4
pi (π)
3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the radius of a circle is 8 cm, what is its area?
128π cm^2
16π cm^2
64π cm^2
32π cm^2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula to calculate the diameter of a circle?
radius / 2
radius + radius
2 * radius
radius * 2
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