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12 questions
What is the diameter of the circle in the image?
10
20π
20
100
If the diameter of a circle is 4, what is the radius?
4
2π
4π
2
If r = 4, d = ?
4
2
8
8π
If d = 3, r = ?
6
3
1.5
1
Fill in the blank. The circumference of a circle is the ________.
distance around it
space inside it
What is the area of this circle?
4π
8π
16π
π
What is the area of this circle?
25π
10π
π
5π
What is the area of this circle?
12π
6π
144π
36π
What is the area of the circle in the image?
9π
12π
12
36π
What is the area of the circle in the image?
10
20π
100
100π
What is the radius of a circle with an area of 49π?
49
10
7
14
Find the circumference of the circle in the image.
10π
20π
100π
20
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