CIRCLE TERMS
RADIUS
DIAMETER
CIRCUMFERENCE
RANDOM
100

The distance from the center of a circle to the circumference, 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 segment 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

What are the two formulas for Circumference?

What is C = pi*d and C = 2*pi*r? (either order)

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 point I? (or What is circle I?)

400

A collection of points all 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 of a radius is double the diameter, and the length of a diameter is half the radius.

What is FALSE?

500

Name the constant of proportionality for the relationship between the diameter and the circumference

What is PI?

500

The diameter of this circle is 18 cm 

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 3.285 km (round to nearest tenth). 

What is 10.3 km?

500

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

What is 1.5 cm?