CIRCLE TERMS
RADIUS
DIAMETER
CIRCUMFERENCE
AREA
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 in

What is 2.5 in

100

The radius of this circle is 5 ft

What is 10 ft

100

The diameter for this circle is 10 cm

What is 31.4 cm

100

The circumference is 65.94 inches. What is the diameter? (USE 3.14 as PI) 

What is 21 in

200

The longest line in a circle, passes through center

What is DIAMETER

200

The diameter of a circle is 12 in

What is 6 in

200

The radius of this circle is 2.5 ft

What is 5 ft

200

The radius for this circle is 13 cm

What is 81.64 cm

200

The circumference is 9.42 cm. What is the radius? (USE 3.14 as PI) 

What is 1.5 cm

300

The distance around a circle 

What is CIRCUMFERENCE

300

The diameter of a circle is 27 in

What is 13.5 in

300

The circumference of this circle is 15.7 ft

What is 5 ft

300

The diameter of this circle is 25 cm

What is 78.5 cm

300

The following are radii of a given circle. 

IP, IR, IS

What is the center point of the circle? 

What is Circle I. 

400

A round plane shape where all points are equidistant from the center

What is CIRCLE

400

The diameter of this circle is 437 in

What is 218.5 in

400

The circumference of this circle is 18.84 ft

What is 6 ft

400

The radius for this circle is 45 cm

What is 282.6 cm

400

True or False:

The length from each radii of a given circle is a different length. 

What is FALSE

500

the word we use to identify this number: 3.14

What is PI

500

The diameter of this circle is 18cm 

What is 9 cm

500

The circumference of this circle is 194.68 ft

What is 62 ft

500

The Diameter for this circle is 3285 cm

What is 10314.9 cm

500

What are the two formulas for circumference? 

What is C = pi*d and C = 2*pi*r

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