Circle Terms
Finding Radius
Finding Diameter
Finding Circumference
Finding Area
100
The distance from the center of a circle to the outside, also half of the diameter
Radius
100
The diameter of a clock is 5 inches. What is the radius?
2.5 inches
100
The radius of this circle is 5. What is the diameter?
10
100
The diameter for this circle is 10. What is the circumference?
31.4
100
The radius of this circle is 2. What is the area?
12.56
200
The distance that is twice the radius
Diameter
200
The diameter of a tire that is 26 inches. What is the radius?
13 inches
200
The radius of this circle is 2.5. What is the diameter?
5
200
The diameter for this circle is 13. What is the circumference?
40.82
200
The radius of this circle is 3. What is the area?
28.26
300
The distance around a circle
Circumference
300
The diameter of a circle is 66 cm. What is the radius?
What is 33 cm
300
The circumference of this circle is 15.7. What is the diameter?
5
300
The diameter of this circle is 25. What is the circumference?
78.5
300
The radius of this circle is 21. What is the area?
1384.74
400
The total amount of space inside of a circle
Area
400
The diameter of this circle is 437
What is 218.5?
400
The circumference of this circle is 18.84. What is the diameter?
6
400
The radius for this circle is 45. What is the circumference?
282.6
400
The diameter of this circle is 52. What is the area?
What is 81.64
500
The number 3.14
pi
500
The diameter of this circle is 0.326. What is the radius?
0.163
500
The radius of this circle is 194.68. What is the diameter?
389.36
500
The Diameter for this circle is 3285. What is the circumference?
10314.9
500
The diameter of this circle is 356. What is the area?
558.92
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