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 distance around the circle

What is the Circumference

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

Half of a circle.

What is a semicircle?

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 radius of this circle is 437

What is 437?

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 28 meters

What is 616 m2

500

3.14 or 22/7

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 of this circle is 26 meters

What is 530.66 m2