Radius/Diameter
Circumference using Radius
Area using Radius
Circumference using Diameter
Area using Diameter
100
If the radius is 5 what is the DIAMETER?
10
100

Find circumference: When radius = 5 ft

31.4 ft

100

Find Area when Radius = 4 ft

50.24 ft sq

100

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

6.28 in

100

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

28.26 cm sq

200
If the diameter is 20 what is the RADIUS?
10
200

Find Circumference when Radius = 10 in

62.8 in

200

Find Area when Radius = 14 cm

615.44 cm sq

200

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

12.56 m

200

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

78.5 ft sq

300

If the diameter is 15 the RADIUS is?

7.5

300

Find Circumference when Radius = 2.8cm Round to the nearest hundredth.

17.58cm

300

Find Area when Radius = 2.1 in. Round to the nearest tenth.

13.8 in sq

300

What is the circumference of a circle with a diameter of 1.4 yd? Round to the nearest tenth.

4.4 yd

300

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

314 mm sq

400

If the radius is 2.25 what is the DIAMETER?

4.5

400

Find Circumference when Radius = 5 1/2 m

34.54 m

400

Find Area when Radius = 3 1/2 cm. Round to the nearest tenth.

38.5 cm sq

400

What is the circumference of a circle with a diameter of 2 2/10 ft? Round to the nearest hundredth. 

6.91 ft

400

What is the area of a circle with a diameter of 2.2 yd? Round to the nearest tenth.

3.8 yd sq

500

If the diameter is 10 2/3 what is the RADIUS?

5 1/3

500

Find Circumference when Radius = 75/90 yd

5 7/30 yd or 5.23 (3 is repeated) yd

500

Find Area when Radius = 49/50 ft. Round to the nearest hundredth.

3.02 ft sq

500

What is the circumference of a circle with a diameter of 3/8 m? Round to the nearest hundredth.

1.18 m

500

What is the area of a circle with a diameter of 1 4/10 in? Round to the nearest tenth.

1.5 in sq