Area and Circumference

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 radius is 30 the DIAMETER is?

60

400

If the radius is 20 what is the DIAMETER?

40

500

If the Radius is 50 what is the DIAMETER?

100

Circumference - Radius

100

Find circumference: When radius = 5

31.4

200

Find Circumference when Radius is 10

62.8

300

Find Circumference when Radius = 25

157

400

Find Circumference when Radius = 50

314

500

Find Circumference when Radius = 75

471

Area - Radius

100

Find Area when Radius = 4

50.2

200

Find Area when Radius = 14

615.4

300

Find Area when Radius = 21

1,385.7

400

Find Area when Radius = 35

3,848.5

500

Find Area when Radius = 45

6358.5

Circumference - Diameter

100

What is the circumference of a circle with the diameter of 2?

6.3

200

What is the circumference of a circle with a diameter of 4?

12.6

300

What is the circumference of a circle with a diameter of 13?

40.8

400

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

69.1

500

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

314.0

Area - Diameter

100

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

28.3

200

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

78.5

300

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

314.0

400

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

379.9

500

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

7,850.0