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Circle Terms
Finding Radius
(find the radius for all)
Finding Diameter (Find Diameter for all)
Finding Circumference(Find Circumference for all)
Finding Area
(Find area for all)
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 10pi

100

The radius of this circle is 2

What is 4pi

200

The line that goes from one side of a circle 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 13pi

200

The radius of this circle is 3

What is 9pi

300

The outside of a circle.

What is a circumference?

300
The diameter of this circle is 27
What is 13.5
300

The circumference of this circle is 5pi

What is 5

300

The diameter of this circle is 25

What is 25pi

300

The radius of this circle is 21

What is 441pi


400
The total amount of space inside of a circle
What is the area?
400
The diameter of this circle is 437
What is 218.5?
400

The circumference of this circle is 16pi

What is 16

400

The radius for this circle is 45

What is 90pi

400

The radius of this circle is 52.4

What is 2745.76pi

500

3.14 

What is pi?

500
The diameter of this circle is 0.325
What is 0.1625
500

The circumference of the circle is 5283pi

What is 5283

500

The Diameter for this circle is 3285

What is 3285pi

500

The radius of this circle is 6955

What is 48,372,025pi