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Circle Terms
Finding Radius
Finding Diameter
Finding Circumference
Finding Area
100
The distance from the center of a circle to the outside, also half of the diameter
What is radius
100
The Diameter of this circle is 5
What is 2.5
100
The radius of this is 5
What is 10
100
The diameter for this circle is 10
What is 31.4
100
The radius of this circle is 2
What is 12.56
200

The longest part in a circle. From one edge to the other through the center. 

What is the Diameter

200
The diameter is 12
What is 6
200
The radius of this circle is 2.5
What is 5
200
The diameter for this circle is 13
What is 40.82
200
The radius of this circle is 3
What is 28.26
300

The distance around the circle.

What is circumference?

300

The diameter of this circle is 28

What is 14

300

The radius of this circle is 15

What is 30

300
The diameter of this circle is 25
What is 78.5
300

The radius of this circle is 21

What is 1,384.74

400
The total amount of space inside of a circle
What is the area?
400

The diameter of this circle is 420?

What is 210

400
The circumference of this circle is 18.84
What is 6
400
The radius for this circle is 45
What is 282.6
400

The diameter is 30. 

What is 706.5?

500
3.14 or 22/7
What is pi?
500

The circumference is 25.12.

What is 4?

500

The circumference of this circle is 194.68.

What is 62?

500

The radius is 12.5.

What is 78.5?

500

The circumference is 25.12.

What is 50.24?