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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

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

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

A line through the circle.

chord

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 diameter of this circle is 194.68

62

500

The Diameter for this circle is 3285

10,314.9

500

The radius of this circle is 6955

151,888,158.5