Circle Vocab
Finding Radius
Finding Diameter
Finding Circumference
Finding Area
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 line that goes from one edge of the circle, through the center, to the other edge of 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 perimeter of the circle

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 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 of this circle is 82

What is 13

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 30

What is 706.5

500
3.14
What is pi?
500

The area of this circle is 50.24

4

500

The area  of this circle is 50.24

What is 8

500
The radius for this circle is 25
What is 157
500

The diameter of this circle is 40

What is 1256

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