Area and Circumference - Exam Review

Radius/Diameter

100

If the radius is 5 what is the DIAMETER?

10

200

If the diameter is 20 what is the RADIUS?

10

300

If the circumference of a circle is 12.56 cm, the radius is ________?

2 cm

400

If the area of a circle is 

64pi

, what is the radius?

8

500

If the area of a circle is 78.5 ft², what is the diameter?

10 ft

Circumference

100

Find circumference: When radius = 5

31.4

200

Find Circumference when Radius = 10

62.8

300

Find Circumference when Radius = 25

157.08

400

Find Circumference when Radius = 50

314.2

500

Find Circumference when Radius = 75

471.2

Area - Radius

100

Find Area when Radius = 4

50.27

200

Find Area when Radius = 12

452.16

300

Find Area when Radius = 8

200.96

400

Find Area when Radius = 11

379.94

500

Find Area when Radius = 10

314

Circumference - Diameter

100

What is the diameter of a circle with the circumference of 6.28?

2

200

What is the diameter of a circle with the circumference of 12.57?

4

300

What is the diameter of a circle with the circumference of 43.98?

14

400

What is the diameter of a circle with the circumference of 69.08?

22

500

What is the diameter of a circle with the circumference of 314?

100

Area - Diameter

100

What is the area of a circle with a diameter of 6?

28.27

200

What is the area of a circle with a diameter of 10?

78.54

300

What is the area of a circle with a diameter of 20?

314.16

400

What is the area of a circle with a diameter of 22?

380.13

500

What is the area of a circle with a diameter of 100?

7,853.98