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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 31.4

100

The radius of this circle is 2

What is 12.6

200
The longest chord in a circle
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 40.8

200

The radius of this circle is 3

What is 28.3

300
A line through the circle.
What is a chord?
300
The diameter of this circle is 27
What is 13.5
300
The circumference of this circle is 15.7
What is 5
300

The diameter of this circle is 25

What is 78.5

300

The radius of this circle is 21

What is 1385.4

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

The area of this circle is 169π

What is 13?

400
The circumference of this circle is 18.84
What is 6
400

The radius for this circle is 45

What is 282.7

400

The radius of this circle is 52.4

What is 8626.1

500
3.14 or 22/7
What is pi?
500

The area of this circle is 136.8 cm2

What is 6.6


500

The circumference of this circle is 194.68

What is 62

500

The Diameter for this circle is 3285

What is 10320.1

500

The radius of this circle is 6955

What is 151965198.4