Radius
Diameter
Circumference
Area
Word Problems
100
Given the circumference, determine the radius. Round to hundredth.
C = 51.81 in
r = 8.25 in
100
Given circumference, determine diameter. Round to nearest hundredth.
C = 43.96 ft
d = 14 ft
100
Find the circumference of a circle with a radius of 4.6 inches. Round to the nearest hundredth, use 3.14 for pi.
28.89 in
100
r = 4.4 cm, determine the area. Round to nearest hundredth.
A = 60.79 cm2
100
The Ferris wheel has a diameter of 78.5 meters. How far does a person travel in one complete rotation while riding the Ferris wheel? Round your answer to the nearest tenth.
246.5 meters
200
Given the circumference determine the radius. Round to hundredth.
C = 20.1 m
r = 3.24 m
200
Given circumference, determine diameter. Round to hundredth.
C= 41.61 mm
d = 13.25 mm
200
Solve for the circumference of a circle with a diameter of 9 4/5m use 3.14 for pi and round to the nearest hundredth,
30.77 m
200
r = 1 3/8 ft. Determine the area. Round to the nearest hundredth.
A = 5.94 ft2
200
Denise is restoring an antique clock and is painting the outer edge. If the radius is 11 2/3 inches, what is the circumference? Round to the nearest tenth and use 3.14 for pi.
73.3 inches
300
Given the circumference determine the radius. Round to hundredth.
C = 34.226 ft
r = 5.45 ft
300
Given circumference, determine diameter. Round to nearest hundredth.
C= 34.54 in
d = 11 in
300
Solve for circumference, round to tenth.
59.8 mm
300
d = 21 m, determine the area. Round to the nearest hundredth.
A = 346.19 m2
300
Mark is covering a circular platform with new paint. The platform has a diameter of 14 ft. How much area needs to be covered by the paint? Round to nearest hundredth.
153.86 ft2
400
Given the circumference determine the radius. Round to tenth.
C = 111.78 ft
r = 17.8 ft
400
Given the circumference, determine diameter. Round to tenth.
C= 54.95 ft
d = 17.5 ft
400
Solve, use 3.14 and round to tenth.
45.5 feet
400
d = 33.3 mm, determine the area. Round to the nearest hundredth.
A = 870.48 mm2
400
A television tower broadcasts its signal at a range of 18.1 miles from the tower to its further point. How many square miles are covered by the range of this tower? Round to nearest hundredth.
1028.7 mi2
500
Given the circumference determine the radius. Round to tenth.
C= 317.77 m
r = 50.6 m
500
Given the circumference determine diameter. Round to tenth.
C = 195.936 mm
d = 62.4 mm
500
Solve, leave answer in terms of pi.
500
A round cake pan has a radius of 6 1/5 inches. What is the area of the cake pan? Use 3.14 for pi and round to the nearest tenth.
120.7 in2
500
A circular fountain is undergoing construction. A temporary wall is placed around the fountain to protect it. If the radius of the protected area is 3m, how much wall is needed? Round to nearest hundredth.
18.84 m