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 line from end to end through the center of the circle 

What is the Diameter

200

The circumference of a circle is 31.4

What is 5?


200

The circumference of this circle is 15.7

What is 5

200

The radius is 13

81.64

200

The diameter of a circle is 13

What is 176.63 

300

3.14 x d

What is the circumference formula?

300

The circumference of a circle is 20.724 

What is 3.3

300

The circumference of a semi circle is 12.56

What is 8

300

The arc length of a semi-circle is 15 

What is 30 
300

The circumference is 30

What is 72.3?

400

3.14 x r x r 

What is the area formula?

400

The arc length of a quarter circle is 12

What is 7.6?

400

The arc length of a quarter circle is 5

What is 6.4

400

The arc length of a quarter circle is 4.25

What is 17

400

The circumference of circle is 23.55

What is 44.2

500

(3.14 x r x r ) divided by 2 


What the area of a semi-circle?

500

The area of a circle is 28.26

What is 3?

500

The area of a circle is 78.5

What is 10

500

The arc length of 1/8 of a circle is 2.1

What is 16.8?

500

The arc length of a semi circle is 12

What is 45.3?

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