CIRCLES REVIEW

CIRCLE TERMS

100

The distance from the center of a circle to the outside, also half of the diameter

RADIUS

200

The longest line in a circle, passes through center

DIAMETER

300

The distance around a circle 

CIRCUMFERENCE

400

The space inside of a circle. 

AREA

500

The word we use to identify an irrational number that we approximate with the number 3.14. 

PI

RADIUS

100

What is the radius when diameter of this circle is 5 in

2.5 in

200

What is the radius when the diameter of a circle is 12 in

6 in

300

What is the radius when diameter of a circle is 27 in

13.5 in

400

What is the radius when the diameter of this circle is 437 in

218.5 in

500

The area of the circle is 50.24 cm². What is the radius? 

4 cm

DIAMETER

100

What is the diameter when the radius of this circle is 5 ft

10 ft

200

What is the diameter when the radius of this circle is 2.5 ft

5 ft

300

The circumference of this circle is 15.7 ft. What is the diameter?

5 ft

400

The circumference of this circle is 18.84 ft. What is the diameter?

6 ft

500

The circumference of this circle is 194.68 ft. What is the diameter? 

62 ft

CIRCUMFERENCE

100

The diameter for this circle is 10 cm. What is the circumference?

31.4 cm

200

The radius for this circle is 13 cm. What is the circumference?

81.64 cm

300

The diameter of this circle is 25 cm. What is the circumference?

78.5 cm

400

The radius for this circle is 45 cm. What is the circumference?

282.6 cm

500

The Diameter for this circle is 3285 cm. What is the circumference?

10314.9 cm

AREA

100

The diameter for this circle is 10 cm. What is the area?

78.5 cm²

200

The radius for this circle is 13 cm. What is the area?

530.66 cm²

300

The diameter of this circle is 25 cm. What is the area?

490.625 cm²

400

The radius for this circle is 45 cm. What is the area?

6358.5 cm²

500

The Diameter for this circle is 126.5 cm. What is the area? (Round to the nearest hundredth of a decimal)

12561.77 cm²