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Circle Vocab
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
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 distance across the circle through the center

What is the Diameter?

200
The diameter is 12
What is 6
200
The radius of this circle is 2.5
What is 5
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 distance around a circle

What is a circumference?

300
The diameter of this circle is 27
What is 13.5
300
The circumference of this circle is 15.7
What is 5
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 circumference of this circle is 18.84
What is 6
400
The radius for this circle is 45
What is 282.6
400
The radius of this circle is 15
What is 706.5
500

3.14 or 22/7 are approximations for _______.

What is pi?

500

The circumference of a circle is 18.84 inches. What is the radius?

What is 3 inches?

500

The circumference of a circle is 37.68 cm. What is the diameter?

What is 12 cm?

500
The radius for this circle is 25
What is 157
500

The diameter of a circle is 20 ft. The area is ______.

What is 314 square feet?