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 25

What is 12.5

100

The radius of this is 15

What is 30

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 chord in a circle
What is the Diameter
200

The diameter is 36

What is 18

200

The radius of this circle is 60

What is 120

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

How to calculate the radius when given diameter

What is diameter divided by 2?

300

The diameter of this circle is 52

What is 26

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 1384.74
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 18.84
What is 6
400
The radius for this circle is 45
What is 282.6
400
The radius of this circle is 52.4
What is 8621.6864
500

3.14 

What is pi?

500

The diameter of this circle is 325

What is 162.5

500

The circumference of this circle is 194.68

What is 62

500
The Diameter for this circle is 3285
What is 10314.9
500
The radius of this circle is 6955
What is 151888158.5
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