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 from one end of a circle to the end

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 distance around the edge of a circle

What is perimeter?

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 radius of a circle is 6.5

What is 40.82?

300

The diameter of a circle is 4.5

What is 15.9?

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 diameter of a circle is 6.4

What is 32.15?

500
3.14 or 22/7
What is pi?
500

The area of a circle is 5.4

What is 1.31?

500

The area of a circle is 5.4

What is 2.62?

500

The area of a circle is 4.1

What is 7.18?


500

The circumference of a circle is 5.8

What is 2.68?


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