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 12.56
200

The distance from one point on a circle through the center to another point on the 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 40.82
200
The radius of this circle is 3
What is 28.26
300

The distance around the edge of a circle (its perimeter).

What is circumference?

300

The diameter of this circle is 28

What is 14

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 4

What is 50.24

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

The circumference of this circle is 87.92

What is 14

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 diameter of this circle is 12

What is 113.04

500
3.14 or 22/7
What is pi?
500

The area of this circle is 28.26

What is 3

500

The area of this circle is 50.24

What is 8

500

The radius for this circle is 9

What is 56.52

500

The diameter of this circle is 14

What is 153.86

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