Circle Terms
Radius
Diameter
Circumference
Area
100
The distance from the center of a circle to the outside, also half of the diameter
Radius
100
The Diameter of this circle is 5
2.5
100
The radius of this is 5.
10
100
The diameter for this circle is 10
31.4
100
The radius of this circle is 2
12.56
200
The longest chord in a circle that goes all the way through the middle of the circle.
Diameter
200
The diameter is 12
6
200
The radius of this circle is 2.5
5
200
The diameter for this circle is 13
40.82
200
The radius of this circle is 3
28.26
300
The distance around a circle.
Circumference
300
The diameter of this circle is 27
13.5
300
The circumference of this circle is 15.7
5
300
The diameter of this circle is 25
78.5
300
The radius of this circle is 21
1,384.74
400
The total amount of space inside of a circle
Area
400
The diameter of this circle is 437
218.5
400
The circumference of this circle is 18.84
6
400
The radius for this circle is 45
282.6
400
The radius of this circle is 52.4
8,621.6864
500
3.14 or 22/7
Pi
500
The diameter of this circle is 0.325
0.1625
500
The circumference of this circle is 194.68
62
500
The Diameter for this circle is 3285
10314.9
500
The radius of this circle is 6955
151,888,158.5
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