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 is 12
What is 6
100
The radius of this is 5
What is 10
100

The radius for this circle is 15 units

What is 94.2 units?

100
The radius of this circle is 2
What is 12.56
200

A line segment that passes through the center and its endpoints are on the circumference of a circle. 

What is the Diameter?

200
The diameter of this circle is 27
What is 13.5
200
The radius of this circle is 2.5
What is 5
200

The diameter of this circle is 25 units

What is 78.5 units?

200
The radius of this circle is 3
What is 28.26
300

The perimeter of a circle.

What is circumference?

300
The diameter of this circle is 0.325
What is 0.1625
300
The circumference of this circle is 15.7
What is 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 circumference of the circle is 213.52 units

What is 34 units?

400

The circumference of this circle is 194.68

What is 62

400
The radius of this circle is 52.4
What is 8621.6864
500

The ratio of the circumference to the diameter.  Use 3.14 or 22/7 for its value.

What is pi?

500

The area of the circle is 452.16 units²

What is 12 units? 

500

The area of the circle is 28.26 units².

What is 6 units? 

500
The radius of this circle is 6955
What is 151888158.5
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