Circumference
Vocabulary
Radius To Diameter, Diameter To Radius
Radius
Area
100

The formula for circumference of a circle

What is c=2 x Pi x R or c= Pi x D?

100
This is what Pi equals.
What is 3.14?
100
The radius is 5. This number is the diameter.
What is 10?
100
The diameter is 12. This number is the radius.
What is 6?
100
What is the formula for area of a circle
What is A= Pi r2
200

The radius is 4 and the diameter is 8. This number is the circumference.

What is 25.12?

200

Half of a diameter.

What is radius?

200
The diameter is 26. This number is the radius.
What is 13?
200
The diameter is 44. this number is the radius.
What is 22?
200

The radius is 1. What is the area?

What is 3.14?

300

The diameter is 22. This number is the circumference.

What is 68.09?

300

Double the radius.

What is diameter?

300
The diameter is 15. This number is the radius.
What is 7.5?
300
The diameter is 23. This number is the radius.
What is 11.5?
300
The radius is 6. What is area
What is 37.65
400

The radius is 17. This number is the circumference.

What is 106.76?

400

The number of sides a circle has.

What is none, 1, 2, or infinite?

400
The radius is 5.5. This number is the diameter,
What is 11?
400
The diameter is 13. This number is the radius.
What is 6.5?
400
The radius is 14. What is the area
What is 87.92
500

The radius is 9.5. This number is the circumference.

What is 59.66?

500

The definition for circumfernce.

What is the distance around a circle?

500
The diameter is 49. This number is the radius.
What is 24.5?
500
Gigi's circle's diameter is 17. Brielle's circle's diameter is 16. This person has a greater radius.
What is Gigi?
500
The radius is 3.5. What is the area
What is 21.98
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