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 longest chord in a 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

A line through the circle.

What is a chord?

300

The diameter of this circle is 27

What is 13.5

300

The radius of this circle is 15.7

What is 31.4

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 radius of this circle is 18.84

What is 37.68

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 0.325

What is 0.1625

500

The radius of this circle is 194.68

What is 389.36

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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