CIRCLE TERMS
The distance from the center of a circle to the outside, also half of the diameter
RADIUS
What is the radius when diameter of this circle is 5 in
2.5 in
What is the diameter when the radius of this circle is 5 ft
10 ft
The diameter for this circle is 10 cm. What is the circumference?
31.4 cm
The diameter for this circle is 10 cm. What is the area?
78.5 cm2
The longest line in a circle, passes through center
DIAMETER
What is the radius when the diameter of a circle is 12 in
6 in
What is the diameter when the radius of this circle is 2.5 ft
5 ft
The radius for this circle is 13 cm. What is the circumference?
81.64 cm
The radius for this circle is 13 cm. What is the area?
530.66 cm2
The distance around a circle
CIRCUMFERENCE
What is the radius when diameter of a circle is 27 in
13.5 in
The circumference of this circle is 15.7 ft. What is the diameter?
5 ft
The diameter of this circle is 25 cm. What is the circumference?
78.5 cm
The diameter of this circle is 25 cm. What is the area?
490.625 cm2
The space inside of a circle.
AREA
What is the radius when the diameter of this circle is 437 in
218.5 in
The circumference of this circle is 18.84 ft. What is the diameter?
6 ft
The radius for this circle is 45 cm. What is the circumference?
282.6 cm
The radius for this circle is 45 cm. What is the area?
6358.5 cm2
The word we use to identify an irrational number that we approximate with the number 3.14.
PI
The area of the circle is 50.24 cm2. What is the radius?
4 cm
The circumference of this circle is 194.68 ft. What is the diameter?
62 ft
The Diameter for this circle is 3285 cm. What is the circumference?
10314.9 cm
The Diameter for this circle is 126.5 cm. What is the area? (Round to the nearest hundredth of a decimal)
12561.77 cm2