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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 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 12.6

200

A line that travels across a circle and goes through the center. 

What is the Diameter

200

The area of a circle is 50.27.

What is 4

200
The radius of this circle is 2.5
What is 5
200

The diameter for this circle is 13

What is 40.8

200

The radius of this circle is 3

What is 28.3

300

The distance around a circle.

What is circumference.

300

The area of the circle is 80

What is 5.0

300

The circumference of this circle is 15.7

What is 5

300

The radius of this circle is 25

What is 157.1

300

The diameter of this circle is 42

What is 1385.4

400

The total amount of space inside of a circle

What is the area?

400

The circumference of the circle is 18.85

What is 3?

400

The circumference of this circle is 45

What is 14.3

400

The radius for this circle is 7.2

What is 45.2

400

The diameter of this circle is 108.4

What is 9228.9

500

DAILY DOUBLE

True or false: It is okay to just use 3.14 in your calculations. 

What is false.

500

The circumference of the circle is 76

What is 12.1?

500

The area of the circle is 400

What is 22.6

500

The area of this circle is 8

What is 10 or 10.1? (This depends on if you round the radius midway)

500

The circumference is 77

What is 471.8 or 475.3