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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 cm

What is 10 cm

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

2 times the radius

What is the Diameter

200
The diameter is 12
What is 6
200

The radius of this circle is 2.5 mm

What is 5 mm

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 touching 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 yds

What is 5 yds

300

The diameter of this circle is 25 ft

What is 78.5 ft

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 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 of this circle is 52.4
What is 8621.6864
500

The term that is represented by 3.14 or 22/7

What is pi?

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 in

What is 10314.9 in

500

The radius of this circle is 6.3 cm

What is 124.6266 cm sq?