Circle Terms
Finding Radius:
Finding Diameter
Finding Circumference
Finding Area
100

The distance from the center of a circle to the outside 

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 (answer in decimal form-round to hundredth)

What is 31.4

100

The radius of this circle is 2 (answer in decimal form-round to hundredth)

What is 12.56

200

A segment whose endpoints are BOTH on the circle. 

What is a chord?

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 (answer in decimal form-round to hundredth)

What is 40.82

200

The radius of this circle is 3 (answer in decimal form-round to hundredth)

What is 28.26

300

The longest chord in a circle that MUST pass through the center.

What is a Diameter?

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 (answer in decimal form-round to the hundredth)

What is 78.5

300

The radius of this circle is 21 (answer in decimal form-round to hundredth)

What is 1384.74

400

The distance around a circle or the 'perimeter" of the circle

What is the circumference?

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 (answer in decimal form-round to the tenth)

What is 282.6

400

The radius of this circle is 52.4 (answer in decimal form-round to hundredth)

What is 8621.69

500

The total amount of space inside of a circle

What is the area?

500
The diameter of this circle is 0.325
What is 0.1625
500

The circumference of this circle is 194.68

What is 62

500

The Diameter for this circle is 3285 (answer in decimal form-round to the tenth)

What is 10314.9

500

The radius of this circle is 6955 (answer in decimal form-round to tenth)

What is 151888158.5