Area and Circumference

Radius/Diameter

100

If the radius is 5 inches what is the DIAMETER?

10 inches

200

If the diameter is 20 kilometers what is the RADIUS?

10 kilometers

300

If the radius is 27 miles the DIAMETER is?

54 miles

400

If the diameter is 5 feet what is the radius?

2.5 feet

500

If the diameter is 39 inches what is the radius?

19.5

What's the circumference? (Given the radius)

100

Find circumference when radius = 5 feet

31.4 feet

200

Find Circumference when radius = 10 miles

62.8 miles

300

Find Circumference when radius = 25 centimeters

157 centimeters

400

Find Circumference when radius = 13.5 inches

84.78 inches

500

Find Circumference when radius = 9.3 feet

58.404 feet

What's the area? (Given the radius)

100

Find Area when Radius = 4 inches

50.24 inches²

200

Find Area when Radius = 14 feet

615.44 ft²

300

Find Area when Radius = 12.5 miles

490.625 miles²

400

Find Area when Radius = 9.3 inches

271.5786 inches²

500

Find Area when Radius = 1 yard

3.14 yards²

What's the circumference? (Given the diameter)

100

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

6.28 inches

200

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

12.56 yards

300

What is the circumference of a circle with a diameter of 11 inches?

34.54 inches

400

What is the circumference of a circle with a diameter of 13.75 feet?

43.175 feet

500

What is the circumference of a circle with a diameter of 27.37 inches?

85.9418 inches