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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 10

What is 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 largest distance from one end of the circle to the other. 

What is the Diameter

200

The diameter is 12

What is 6

200

The radius of this circle is 4

What is 8

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 amount of space a circle takes up. 

What is area?

300

The diameter of this circle is 27

What is 13.5

300

The radius of a circle is 10

What is 20

300

The diameter of this circle is 25

What is 78.5

300

The radius of this circle is 21

What is 1384.74

400
The distance around a circle.

What is the circumference?

400

The diameter of this circle is 400

What is 200

400

The radius of a circle is 11

What is 22

400

The radius for this circle is 2

What is 12.56

400

The radius of this circle is 52.4

What is 8621.6864

500

The fancy name for 3.14159...

What is pi?

500

The diameter of this circle is 7

What is 3.5

500
The radius of a circle is 15

What is 30

500

The Diameter for this circle is 3285

What is 10314.9

500

The radius of this circle is 6955

What is 151888158.5