Circle Terms
Finding Radius
(find the radius for all)
Finding Diameter (Find Diameter for all)
Finding Circumference(Find Circumference for all)
Given Circumference
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 diameter if C=31.4

What is 10?

200

The distance across 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 diameter if C = 37.68

What is 12?

300

The perimeter of a circle.

What is a circumference?

300
The diameter of this circle is 27
What is 13.5
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 if C = 18.84

What is 3?

400

The word for 'half a circle'

What is semicircle?

400
The diameter of this circle is 437
What is 218.5?
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 radius if C = 56.52

What is 9?

500

3.14

What is pi?

500
The diameter of this circle is 0.325
What is 0.1625
500
The diameter of this circle is 194.68
What is 62
500
The Diameter for this circle is 3285
What is 10314.9
500

The diameter if C = 3874.76

What is 1234?

M
e
n
u