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Circle Terms
Finding Radius
(find the radius for all)
Semi and Quarter circles
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 a semi circle is 4. What is the area?

25.12

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 segment is that goes through the origin and intersects with opposite sides of the circle

What is the Diameter

200
The diameter is 12
What is 6
200

The diameter of a semi circle is 6. What is the area?

What is 14.13

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 enclosing boundary of a curved geometric figure, especially a circle.

Circumference
300
The diameter of this circle is 27
What is 13.5
300

The radius of the semi circle is 7. What is the perimeter? 

What is 35.98

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 diameter of this circle is 437
What is 218.5?
400

The radius of a quarter circle is 8. What is the perimeter?

What is 28.56

400
The radius for this circle is 45
What is 282.6
400

The radius of this circle is 40

What is 5,024

500

What is pi?

circumference divided by diameter

500
The diameter of this circle is 0.325
What is 0.1625
500

The diameter of the quarter circle is 10. What is the perimeter?

What is 17.85

500
The Diameter for this circle is 3285
What is 10314.9
500

The radius of this circle is 95

What is 28,338.5